/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 15:44:42,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 15:44:42,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 15:44:42,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-08 15:44:42,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-08 15:44:42,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-08 15:44:42,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-08 15:44:42,818 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-08 15:44:42,874 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 15:44:42,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 15:44:42,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 15:44:42,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 15:44:42,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 15:44:42,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 15:44:42,880 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 15:44:42,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 15:44:42,881 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 15:44:42,881 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 15:44:42,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 15:44:42,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 15:44:42,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 15:44:42,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-08 15:44:42,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 15:44:42,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-08 15:44:42,884 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-08 15:44:42,884 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 15:44:42,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-08 15:44:42,884 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 15:44:42,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-08 15:44:42,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 15:44:42,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 15:44:42,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 15:44:42,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:44:42,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 15:44:42,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 15:44:42,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-08 15:44:42,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-08 15:44:42,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-08 15:44:42,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-08 15:44:42,887 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 15:44:42,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 15:44:43,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 15:44:43,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 15:44:43,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 15:44:43,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 15:44:43,373 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 15:44:43,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c [2021-10-08 15:44:43,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/757885f45/038e9c7053894b5fb7454bce228dc33a/FLAG77769832f [2021-10-08 15:44:44,168 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 15:44:44,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c [2021-10-08 15:44:44,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/757885f45/038e9c7053894b5fb7454bce228dc33a/FLAG77769832f [2021-10-08 15:44:44,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/757885f45/038e9c7053894b5fb7454bce228dc33a [2021-10-08 15:44:44,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 15:44:44,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-08 15:44:44,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 15:44:44,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 15:44:44,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 15:44:44,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 03:44:44" (1/1) ... [2021-10-08 15:44:44,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d86676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44, skipping insertion in model container [2021-10-08 15:44:44,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 03:44:44" (1/1) ... [2021-10-08 15:44:44,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 15:44:44,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 15:44:44,794 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c[3093,3106] [2021-10-08 15:44:44,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 15:44:44,814 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 15:44:44,848 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c[3093,3106] [2021-10-08 15:44:44,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 15:44:44,872 INFO L208 MainTranslator]: Completed translation [2021-10-08 15:44:44,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44 WrapperNode [2021-10-08 15:44:44,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 15:44:44,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 15:44:44,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 15:44:44,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 15:44:44,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44" (1/1) ... [2021-10-08 15:44:44,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44" (1/1) ... [2021-10-08 15:44:44,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 15:44:44,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 15:44:44,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 15:44:44,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 15:44:44,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44" (1/1) ... [2021-10-08 15:44:44,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44" (1/1) ... [2021-10-08 15:44:44,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44" (1/1) ... [2021-10-08 15:44:44,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44" (1/1) ... [2021-10-08 15:44:44,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44" (1/1) ... [2021-10-08 15:44:44,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44" (1/1) ... [2021-10-08 15:44:44,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44" (1/1) ... [2021-10-08 15:44:44,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 15:44:45,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 15:44:45,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 15:44:45,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 15:44:45,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44" (1/1) ... [2021-10-08 15:44:45,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:44:45,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:44:45,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-08 15:44:45,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-08 15:44:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 15:44:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-08 15:44:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-08 15:44:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 15:44:45,187 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 15:44:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 15:44:45,187 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 15:44:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-08 15:44:45,187 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-08 15:44:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-08 15:44:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-08 15:44:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 15:44:45,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 15:44:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 15:44:45,192 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 15:44:46,019 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 15:44:46,020 INFO L299 CfgBuilder]: Removed 56 assume(true) statements. [2021-10-08 15:44:46,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:44:46 BoogieIcfgContainer [2021-10-08 15:44:46,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 15:44:46,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 15:44:46,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 15:44:46,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 15:44:46,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 03:44:44" (1/3) ... [2021-10-08 15:44:46,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7245d718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 03:44:46, skipping insertion in model container [2021-10-08 15:44:46,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:44:44" (2/3) ... [2021-10-08 15:44:46,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7245d718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 03:44:46, skipping insertion in model container [2021-10-08 15:44:46,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:44:46" (3/3) ... [2021-10-08 15:44:46,035 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-subst.wvr.c [2021-10-08 15:44:46,043 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-08 15:44:46,043 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 15:44:46,044 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-10-08 15:44:46,044 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 15:44:46,107 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,108 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,108 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,108 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,109 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,109 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,109 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,109 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,110 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,110 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,110 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,111 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,111 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,112 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,112 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,112 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,113 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,113 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,113 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,114 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,114 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,114 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,114 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,115 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,115 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,115 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,116 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,116 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,116 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,117 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,117 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,117 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,117 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,118 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,118 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,118 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,119 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,119 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,119 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,121 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,154 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,154 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,154 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,155 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,155 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,155 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,155 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,160 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,160 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,160 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,160 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,160 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,161 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,161 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,161 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,161 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,161 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,161 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,162 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,162 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,162 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,162 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,163 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,163 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,163 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,163 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,163 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,164 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,164 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,164 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,164 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,164 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,165 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,165 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,165 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,165 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,166 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,166 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,166 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,166 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,166 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,167 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,167 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,167 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,167 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,168 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,168 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,168 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,168 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,168 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,168 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,169 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,169 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,169 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,169 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,170 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,170 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,170 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,170 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,170 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,171 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,171 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,171 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,171 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,171 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,172 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,172 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,172 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,172 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,172 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,173 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,174 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,174 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,174 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,175 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,175 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,175 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,175 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,176 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,176 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,176 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,176 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,177 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,177 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,177 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,177 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,178 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,178 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,178 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,178 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,179 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,179 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,179 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,180 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,180 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,180 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,180 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,181 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,181 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,181 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,182 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,182 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,182 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,182 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,183 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,183 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,184 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,184 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,184 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,184 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,185 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,185 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,185 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,185 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,186 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,186 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,187 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,187 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,187 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,187 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,190 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,190 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,190 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,190 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,191 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,191 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,191 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,194 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,194 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,194 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,195 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,195 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,195 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,195 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,197 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,197 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,197 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,198 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,198 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,198 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,198 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,198 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,199 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,199 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,199 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,200 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,200 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,200 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,200 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,201 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,201 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,201 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,201 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,202 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,202 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,202 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,202 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,202 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,203 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,203 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,203 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,203 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,203 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,204 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,204 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,204 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,204 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,204 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,205 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,205 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,205 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,205 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,205 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,207 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,207 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,207 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,207 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,209 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,209 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,209 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,209 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,209 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,210 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,210 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,210 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,210 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,210 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,210 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,211 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,211 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,211 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,211 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,212 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,212 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,212 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,212 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,212 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,213 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,213 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,213 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,213 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,213 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,215 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,215 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,215 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,215 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,215 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,216 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,216 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,216 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,216 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,216 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,217 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,218 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,218 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,218 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,218 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,218 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,219 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,219 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,219 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,219 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,219 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,220 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,220 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,220 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,221 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,221 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,223 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,223 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,223 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,223 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,224 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,224 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,224 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,224 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,224 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,224 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,225 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,225 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,225 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,225 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,225 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,226 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,226 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,226 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,226 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,226 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,226 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,227 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,227 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,227 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,227 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,227 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,228 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,228 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,228 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,228 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,228 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,228 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,229 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,229 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,229 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,229 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,229 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,229 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,230 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,230 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,230 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,230 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,230 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,231 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,231 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,231 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,233 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,233 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,233 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,233 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,233 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,233 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,234 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,234 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,234 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,234 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,234 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,235 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,235 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,235 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,235 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,235 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,235 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,236 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,236 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,236 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,236 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,236 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,237 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,237 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,237 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,237 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,238 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,238 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,238 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,240 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,240 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,240 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,240 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,240 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,241 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,241 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,241 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,241 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,242 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,242 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,242 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,242 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,243 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,243 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,243 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,244 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,244 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,244 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,244 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,244 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,245 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,245 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,245 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,245 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,246 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,246 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,246 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,247 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,247 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,247 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,247 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,248 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,248 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,248 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,248 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,249 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,249 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,249 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,249 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,250 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,250 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,250 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,250 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,250 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,251 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,251 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,251 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,251 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,251 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,251 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,252 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,252 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,252 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,252 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,252 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,252 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,253 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,253 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,253 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,253 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,254 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,254 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,254 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,254 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,254 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,255 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,255 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,255 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,255 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,255 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,256 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,256 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,256 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,256 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,256 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,257 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,258 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,258 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,258 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,258 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,258 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,258 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,259 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,259 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,259 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,259 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,259 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,260 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,260 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,260 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,260 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,260 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,260 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,261 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,261 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,261 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,261 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,261 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,261 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,261 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,262 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,262 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,262 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,262 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,262 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,263 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,263 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,263 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,263 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,263 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,263 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,264 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,264 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,264 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,264 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,264 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,264 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,264 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,265 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,265 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,265 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,265 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,265 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,265 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,266 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,266 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,266 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,266 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,266 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,266 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,266 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,267 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,267 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,267 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,267 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,267 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,267 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,268 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,268 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,268 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,268 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,269 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,269 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,269 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,269 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,269 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,270 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,270 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,270 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,270 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,271 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,271 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,271 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,271 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,271 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,271 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,272 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,272 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,272 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,272 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,272 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,273 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,273 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,273 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,273 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,273 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,274 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,274 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,274 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,274 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,277 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,277 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,277 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,277 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,278 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,278 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,278 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,278 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,278 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,279 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,279 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,279 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,279 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,280 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,280 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,280 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,280 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,280 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,280 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,281 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,281 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,285 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,285 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,285 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,285 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,285 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,286 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,286 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,286 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,286 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,286 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,286 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,287 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,287 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,287 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,287 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,287 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,288 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,288 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,293 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,293 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,294 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,294 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,295 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,295 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,295 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,295 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,295 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,295 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,296 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,296 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,296 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,298 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,299 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,299 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,299 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,300 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,300 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,300 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,300 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,301 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,301 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,301 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,301 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,302 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,302 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,302 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,302 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,302 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,303 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:44:46,312 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-08 15:44:46,392 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 15:44:46,401 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-08 15:44:46,401 INFO L340 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2021-10-08 15:44:46,425 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 15:44:46,440 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 390 places, 418 transitions, 860 flow [2021-10-08 15:44:46,446 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 390 places, 418 transitions, 860 flow [2021-10-08 15:44:46,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 390 places, 418 transitions, 860 flow [2021-10-08 15:44:46,650 INFO L129 PetriNetUnfolder]: 38/415 cut-off events. [2021-10-08 15:44:46,650 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-08 15:44:46,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 415 events. 38/415 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 965 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 309. Up to 2 conditions per place. [2021-10-08 15:44:46,704 INFO L116 LiptonReduction]: Number of co-enabled transitions 40128 [2021-10-08 15:45:16,418 INFO L131 LiptonReduction]: Checked pairs total: 42209 [2021-10-08 15:45:16,418 INFO L133 LiptonReduction]: Total number of compositions: 532 [2021-10-08 15:45:16,437 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 63 transitions, 150 flow [2021-10-08 15:45:16,671 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3771 states, 3037 states have (on average 4.225551531116233) internal successors, (12833), 3770 states have internal predecessors, (12833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:16,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 3771 states, 3037 states have (on average 4.225551531116233) internal successors, (12833), 3770 states have internal predecessors, (12833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:16,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-08 15:45:16,696 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:16,697 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-08 15:45:16,698 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:16,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:16,706 INFO L82 PathProgramCache]: Analyzing trace with hash 57193, now seen corresponding path program 1 times [2021-10-08 15:45:16,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:16,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806200313] [2021-10-08 15:45:16,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:16,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:17,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:45:17,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:17,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806200313] [2021-10-08 15:45:17,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806200313] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:45:17,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:45:17,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 15:45:17,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026152489] [2021-10-08 15:45:17,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:45:17,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:17,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:45:17,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:45:17,072 INFO L87 Difference]: Start difference. First operand has 3771 states, 3037 states have (on average 4.225551531116233) internal successors, (12833), 3770 states have internal predecessors, (12833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:17,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:17,278 INFO L93 Difference]: Finished difference Result 3995 states and 13491 transitions. [2021-10-08 15:45:17,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:45:17,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-10-08 15:45:17,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:17,359 INFO L225 Difference]: With dead ends: 3995 [2021-10-08 15:45:17,359 INFO L226 Difference]: Without dead ends: 3995 [2021-10-08 15:45:17,361 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:45:17,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2021-10-08 15:45:17,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 2004. [2021-10-08 15:45:17,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1705 states have (on average 3.961876832844575) internal successors, (6755), 2003 states have internal predecessors, (6755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:17,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 6755 transitions. [2021-10-08 15:45:17,614 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 6755 transitions. Word has length 2 [2021-10-08 15:45:17,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:17,615 INFO L470 AbstractCegarLoop]: Abstraction has 2004 states and 6755 transitions. [2021-10-08 15:45:17,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:17,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 6755 transitions. [2021-10-08 15:45:17,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 15:45:17,616 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:17,616 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 15:45:17,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-08 15:45:17,617 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:17,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:17,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1775988, now seen corresponding path program 1 times [2021-10-08 15:45:17,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:17,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280129809] [2021-10-08 15:45:17,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:17,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:45:17,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:17,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280129809] [2021-10-08 15:45:17,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280129809] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:17,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109394612] [2021-10-08 15:45:17,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:17,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:17,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:45:17,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:45:17,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-08 15:45:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:17,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 15:45:17,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:45:17,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:45:17,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109394612] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:17,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:45:17,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-08 15:45:17,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189057298] [2021-10-08 15:45:17,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:45:17,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:17,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:45:17,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:45:17,918 INFO L87 Difference]: Start difference. First operand 2004 states and 6755 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:18,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:18,134 INFO L93 Difference]: Finished difference Result 5989 states and 20236 transitions. [2021-10-08 15:45:18,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:45:18,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 15:45:18,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:18,218 INFO L225 Difference]: With dead ends: 5989 [2021-10-08 15:45:18,218 INFO L226 Difference]: Without dead ends: 5989 [2021-10-08 15:45:18,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:45:18,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5989 states. [2021-10-08 15:45:18,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5989 to 2007. [2021-10-08 15:45:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1708 states have (on average 3.9601873536299768) internal successors, (6764), 2006 states have internal predecessors, (6764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:18,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 6764 transitions. [2021-10-08 15:45:18,463 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 6764 transitions. Word has length 3 [2021-10-08 15:45:18,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:18,463 INFO L470 AbstractCegarLoop]: Abstraction has 2007 states and 6764 transitions. [2021-10-08 15:45:18,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:18,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 6764 transitions. [2021-10-08 15:45:18,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 15:45:18,466 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:18,467 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 15:45:18,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-08 15:45:18,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:18,676 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:18,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:18,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1775989, now seen corresponding path program 1 times [2021-10-08 15:45:18,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:18,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996948251] [2021-10-08 15:45:18,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:18,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:18,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:45:18,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:18,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996948251] [2021-10-08 15:45:18,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996948251] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:45:18,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:45:18,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:45:18,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644955761] [2021-10-08 15:45:18,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:45:18,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:18,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:45:18,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:45:18,788 INFO L87 Difference]: Start difference. First operand 2007 states and 6764 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:18,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:18,843 INFO L93 Difference]: Finished difference Result 2004 states and 6758 transitions. [2021-10-08 15:45:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:45:18,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 15:45:18,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:18,864 INFO L225 Difference]: With dead ends: 2004 [2021-10-08 15:45:18,865 INFO L226 Difference]: Without dead ends: 2004 [2021-10-08 15:45:18,865 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:45:18,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2021-10-08 15:45:18,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 2004. [2021-10-08 15:45:18,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1708 states have (on average 3.9566744730679155) internal successors, (6758), 2003 states have internal predecessors, (6758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:18,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 6758 transitions. [2021-10-08 15:45:18,958 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 6758 transitions. Word has length 3 [2021-10-08 15:45:18,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:18,959 INFO L470 AbstractCegarLoop]: Abstraction has 2004 states and 6758 transitions. [2021-10-08 15:45:18,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:18,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 6758 transitions. [2021-10-08 15:45:18,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-08 15:45:18,960 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:18,960 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-08 15:45:18,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-08 15:45:18,960 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:18,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:18,961 INFO L82 PathProgramCache]: Analyzing trace with hash 55058633, now seen corresponding path program 2 times [2021-10-08 15:45:18,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:18,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375604171] [2021-10-08 15:45:18,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:18,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:19,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:45:19,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:19,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375604171] [2021-10-08 15:45:19,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375604171] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:19,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219701600] [2021-10-08 15:45:19,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:45:19,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:19,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:45:19,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:45:19,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-08 15:45:19,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 15:45:19,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:45:19,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 15:45:19,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:45:19,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 15:45:19,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219701600] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:45:19,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:45:19,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-08 15:45:19,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922205849] [2021-10-08 15:45:19,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:45:19,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:19,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:45:19,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:45:19,129 INFO L87 Difference]: Start difference. First operand 2004 states and 6758 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:19,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:19,169 INFO L93 Difference]: Finished difference Result 2001 states and 6755 transitions. [2021-10-08 15:45:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:45:19,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-08 15:45:19,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:19,191 INFO L225 Difference]: With dead ends: 2001 [2021-10-08 15:45:19,191 INFO L226 Difference]: Without dead ends: 2001 [2021-10-08 15:45:19,192 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11.2ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:45:19,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2021-10-08 15:45:19,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1995. [2021-10-08 15:45:19,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1702 states have (on average 3.961809635722679) internal successors, (6743), 1994 states have internal predecessors, (6743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 6743 transitions. [2021-10-08 15:45:19,274 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 6743 transitions. Word has length 4 [2021-10-08 15:45:19,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:19,275 INFO L470 AbstractCegarLoop]: Abstraction has 1995 states and 6743 transitions. [2021-10-08 15:45:19,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:19,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 6743 transitions. [2021-10-08 15:45:19,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 15:45:19,276 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:19,277 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:45:19,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-08 15:45:19,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:19,490 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:19,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:19,491 INFO L82 PathProgramCache]: Analyzing trace with hash 336287096, now seen corresponding path program 1 times [2021-10-08 15:45:19,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:19,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545939029] [2021-10-08 15:45:19,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:19,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:19,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:45:19,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:19,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545939029] [2021-10-08 15:45:19,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545939029] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:45:19,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:45:19,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:45:19,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757331935] [2021-10-08 15:45:19,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:45:19,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:19,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:45:19,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:45:19,568 INFO L87 Difference]: Start difference. First operand 1995 states and 6743 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:19,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:19,604 INFO L93 Difference]: Finished difference Result 1998 states and 6746 transitions. [2021-10-08 15:45:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:45:19,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-08 15:45:19,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:19,618 INFO L225 Difference]: With dead ends: 1998 [2021-10-08 15:45:19,618 INFO L226 Difference]: Without dead ends: 1998 [2021-10-08 15:45:19,618 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:45:19,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2021-10-08 15:45:19,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1998. [2021-10-08 15:45:19,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1998 states, 1705 states have (on average 3.956598240469208) internal successors, (6746), 1997 states have internal predecessors, (6746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:19,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 6746 transitions. [2021-10-08 15:45:19,705 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 6746 transitions. Word has length 8 [2021-10-08 15:45:19,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:19,706 INFO L470 AbstractCegarLoop]: Abstraction has 1998 states and 6746 transitions. [2021-10-08 15:45:19,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:19,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 6746 transitions. [2021-10-08 15:45:19,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:45:19,707 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:19,707 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:45:19,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-08 15:45:19,708 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:19,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:19,708 INFO L82 PathProgramCache]: Analyzing trace with hash 809180872, now seen corresponding path program 1 times [2021-10-08 15:45:19,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:19,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894007370] [2021-10-08 15:45:19,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:19,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:19,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 15:45:19,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:19,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894007370] [2021-10-08 15:45:19,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894007370] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:45:19,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:45:19,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:45:19,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567115587] [2021-10-08 15:45:19,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:45:19,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:19,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:45:19,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:45:19,771 INFO L87 Difference]: Start difference. First operand 1998 states and 6746 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:19,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:19,843 INFO L93 Difference]: Finished difference Result 3442 states and 11609 transitions. [2021-10-08 15:45:19,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:45:19,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-08 15:45:19,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:19,867 INFO L225 Difference]: With dead ends: 3442 [2021-10-08 15:45:19,867 INFO L226 Difference]: Without dead ends: 3442 [2021-10-08 15:45:19,868 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:45:19,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2021-10-08 15:45:19,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 2362. [2021-10-08 15:45:19,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2362 states, 2069 states have (on average 4.302561623972934) internal successors, (8902), 2361 states have internal predecessors, (8902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:20,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 8902 transitions. [2021-10-08 15:45:20,030 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 8902 transitions. Word has length 11 [2021-10-08 15:45:20,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:20,031 INFO L470 AbstractCegarLoop]: Abstraction has 2362 states and 8902 transitions. [2021-10-08 15:45:20,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 8902 transitions. [2021-10-08 15:45:20,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:45:20,034 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:20,034 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:45:20,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-08 15:45:20,035 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:20,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:20,035 INFO L82 PathProgramCache]: Analyzing trace with hash 809180873, now seen corresponding path program 1 times [2021-10-08 15:45:20,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:20,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508201064] [2021-10-08 15:45:20,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:20,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:20,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 15:45:20,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:20,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508201064] [2021-10-08 15:45:20,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508201064] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:20,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271778295] [2021-10-08 15:45:20,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:20,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:20,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:45:20,128 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:45:20,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-08 15:45:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:20,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 15:45:20,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:45:20,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 15:45:20,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271778295] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:20,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:45:20,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2021-10-08 15:45:20,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997605993] [2021-10-08 15:45:20,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:45:20,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:20,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:45:20,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:45:20,280 INFO L87 Difference]: Start difference. First operand 2362 states and 8902 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:20,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:20,323 INFO L93 Difference]: Finished difference Result 2365 states and 8905 transitions. [2021-10-08 15:45:20,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 15:45:20,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-08 15:45:20,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:20,340 INFO L225 Difference]: With dead ends: 2365 [2021-10-08 15:45:20,340 INFO L226 Difference]: Without dead ends: 2365 [2021-10-08 15:45:20,341 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:45:20,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2021-10-08 15:45:20,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2365. [2021-10-08 15:45:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2365 states, 2072 states have (on average 4.297779922779923) internal successors, (8905), 2364 states have internal predecessors, (8905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:20,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 8905 transitions. [2021-10-08 15:45:20,446 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 8905 transitions. Word has length 11 [2021-10-08 15:45:20,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:20,446 INFO L470 AbstractCegarLoop]: Abstraction has 2365 states and 8905 transitions. [2021-10-08 15:45:20,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:20,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 8905 transitions. [2021-10-08 15:45:20,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 15:45:20,447 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:20,448 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:45:20,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-08 15:45:20,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:20,661 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:20,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:20,662 INFO L82 PathProgramCache]: Analyzing trace with hash 189058681, now seen corresponding path program 2 times [2021-10-08 15:45:20,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:20,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165926683] [2021-10-08 15:45:20,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:20,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:20,757 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-08 15:45:20,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:20,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165926683] [2021-10-08 15:45:20,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165926683] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:20,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020317583] [2021-10-08 15:45:20,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:45:20,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:20,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:45:20,761 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:45:20,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-08 15:45:20,883 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:45:20,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:45:20,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 15:45:20,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:45:20,959 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-08 15:45:20,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020317583] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:20,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:45:20,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-08 15:45:20,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888966334] [2021-10-08 15:45:20,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 15:45:20,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:20,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 15:45:20,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:45:20,962 INFO L87 Difference]: Start difference. First operand 2365 states and 8905 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:21,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:21,061 INFO L93 Difference]: Finished difference Result 2368 states and 8908 transitions. [2021-10-08 15:45:21,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:45:21,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-08 15:45:21,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:21,076 INFO L225 Difference]: With dead ends: 2368 [2021-10-08 15:45:21,077 INFO L226 Difference]: Without dead ends: 2368 [2021-10-08 15:45:21,077 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 36.6ms TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:45:21,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2021-10-08 15:45:21,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2368. [2021-10-08 15:45:21,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2368 states, 2075 states have (on average 4.293012048192771) internal successors, (8908), 2367 states have internal predecessors, (8908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:21,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 8908 transitions. [2021-10-08 15:45:21,190 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 8908 transitions. Word has length 14 [2021-10-08 15:45:21,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:21,190 INFO L470 AbstractCegarLoop]: Abstraction has 2368 states and 8908 transitions. [2021-10-08 15:45:21,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:21,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 8908 transitions. [2021-10-08 15:45:21,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 15:45:21,192 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:21,192 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:45:21,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-08 15:45:21,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:21,406 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:21,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:21,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1192317367, now seen corresponding path program 3 times [2021-10-08 15:45:21,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:21,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536009596] [2021-10-08 15:45:21,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:21,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:21,495 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-08 15:45:21,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:21,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536009596] [2021-10-08 15:45:21,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536009596] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:21,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726591467] [2021-10-08 15:45:21,496 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 15:45:21,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:21,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:45:21,497 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:45:21,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-08 15:45:21,674 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-08 15:45:21,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:45:21,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-08 15:45:21,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:45:21,781 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-08 15:45:21,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726591467] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:21,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:45:21,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2021-10-08 15:45:21,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285149220] [2021-10-08 15:45:21,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:45:21,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:21,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:45:21,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:45:21,784 INFO L87 Difference]: Start difference. First operand 2368 states and 8908 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:21,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:21,847 INFO L93 Difference]: Finished difference Result 2371 states and 8911 transitions. [2021-10-08 15:45:21,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 15:45:21,848 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-08 15:45:21,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:21,863 INFO L225 Difference]: With dead ends: 2371 [2021-10-08 15:45:21,863 INFO L226 Difference]: Without dead ends: 2371 [2021-10-08 15:45:21,864 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 59.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:45:21,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2021-10-08 15:45:21,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2371. [2021-10-08 15:45:21,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2078 states have (on average 4.288257940327238) internal successors, (8911), 2370 states have internal predecessors, (8911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:21,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 8911 transitions. [2021-10-08 15:45:21,959 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 8911 transitions. Word has length 17 [2021-10-08 15:45:21,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:21,960 INFO L470 AbstractCegarLoop]: Abstraction has 2371 states and 8911 transitions. [2021-10-08 15:45:21,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:21,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 8911 transitions. [2021-10-08 15:45:21,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 15:45:21,961 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:21,961 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:45:22,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-08 15:45:22,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:22,178 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:22,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:22,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1787750265, now seen corresponding path program 4 times [2021-10-08 15:45:22,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:22,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821365680] [2021-10-08 15:45:22,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:22,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:45:22,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:22,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821365680] [2021-10-08 15:45:22,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821365680] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:22,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232526627] [2021-10-08 15:45:22,293 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 15:45:22,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:22,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:45:22,298 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:45:22,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-08 15:45:22,426 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 15:45:22,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:45:22,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-08 15:45:22,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:45:22,549 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:45:22,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232526627] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:22,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:45:22,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-10-08 15:45:22,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312442671] [2021-10-08 15:45:22,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-08 15:45:22,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:22,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-08 15:45:22,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2021-10-08 15:45:22,552 INFO L87 Difference]: Start difference. First operand 2371 states and 8911 transitions. Second operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:22,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:22,623 INFO L93 Difference]: Finished difference Result 2374 states and 8914 transitions. [2021-10-08 15:45:22,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 15:45:22,624 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-08 15:45:22,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:22,639 INFO L225 Difference]: With dead ends: 2374 [2021-10-08 15:45:22,639 INFO L226 Difference]: Without dead ends: 2374 [2021-10-08 15:45:22,639 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 75.2ms TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2021-10-08 15:45:22,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2021-10-08 15:45:22,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 2374. [2021-10-08 15:45:22,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2374 states, 2081 states have (on average 4.283517539644402) internal successors, (8914), 2373 states have internal predecessors, (8914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:22,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 8914 transitions. [2021-10-08 15:45:22,728 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 8914 transitions. Word has length 20 [2021-10-08 15:45:22,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:22,728 INFO L470 AbstractCegarLoop]: Abstraction has 2374 states and 8914 transitions. [2021-10-08 15:45:22,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:22,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 8914 transitions. [2021-10-08 15:45:22,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 15:45:22,730 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:22,730 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:45:22,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-08 15:45:22,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-08 15:45:22,946 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:22,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:22,947 INFO L82 PathProgramCache]: Analyzing trace with hash -558146103, now seen corresponding path program 5 times [2021-10-08 15:45:22,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:22,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896742939] [2021-10-08 15:45:22,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:22,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:23,640 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:45:23,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:23,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896742939] [2021-10-08 15:45:23,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896742939] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:23,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588003661] [2021-10-08 15:45:23,642 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 15:45:23,642 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:23,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:45:23,643 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:45:23,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-08 15:45:24,128 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-08 15:45:24,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:45:24,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-08 15:45:24,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:45:24,321 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:45:24,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 232 treesize of output 254 [2021-10-08 15:45:25,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-08 15:45:26,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:45:26,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:27,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:45:27,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:27,834 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:27,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:45:28,701 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:28,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:45:29,718 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-08 15:45:29,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 82 treesize of output 128 [2021-10-08 15:45:31,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-08 15:45:32,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:45:34,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:35,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:45:36,759 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-10-08 15:45:36,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 114 [2021-10-08 15:45:39,275 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-08 15:45:39,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 108 treesize of output 174 [2021-10-08 15:45:39,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:45:39,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:45:39,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:45:39,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:45:39,594 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:45:39,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:45:39,616 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:39,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:45:39,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-08 15:45:39,681 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 1 proven. 33 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-08 15:45:39,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588003661] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:39,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:45:39,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 26 [2021-10-08 15:45:39,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665437714] [2021-10-08 15:45:39,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-08 15:45:39,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:39,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-08 15:45:39,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=619, Unknown=0, NotChecked=0, Total=756 [2021-10-08 15:45:39,686 INFO L87 Difference]: Start difference. First operand 2374 states and 8914 transitions. Second operand has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:41,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:41,920 INFO L93 Difference]: Finished difference Result 3102 states and 11405 transitions. [2021-10-08 15:45:41,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 15:45:41,921 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-08 15:45:41,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:41,941 INFO L225 Difference]: With dead ends: 3102 [2021-10-08 15:45:41,941 INFO L226 Difference]: Without dead ends: 3102 [2021-10-08 15:45:41,942 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 1839.4ms TimeCoverageRelationStatistics Valid=273, Invalid=917, Unknown=0, NotChecked=0, Total=1190 [2021-10-08 15:45:41,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2021-10-08 15:45:42,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 2555. [2021-10-08 15:45:42,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 2262 states have (on average 4.455349248452697) internal successors, (10078), 2554 states have internal predecessors, (10078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:42,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 10078 transitions. [2021-10-08 15:45:42,053 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 10078 transitions. Word has length 23 [2021-10-08 15:45:42,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:42,053 INFO L470 AbstractCegarLoop]: Abstraction has 2555 states and 10078 transitions. [2021-10-08 15:45:42,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:42,054 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 10078 transitions. [2021-10-08 15:45:42,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 15:45:42,055 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:42,055 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:45:42,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-08 15:45:42,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:42,269 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:42,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:42,270 INFO L82 PathProgramCache]: Analyzing trace with hash -558146101, now seen corresponding path program 1 times [2021-10-08 15:45:42,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:42,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027228731] [2021-10-08 15:45:42,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:42,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:42,928 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:45:42,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:42,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027228731] [2021-10-08 15:45:42,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027228731] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:42,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055798587] [2021-10-08 15:45:42,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:42,930 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:42,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:45:42,931 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:45:42,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-08 15:45:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:43,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-08 15:45:43,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:45:43,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:45:43,301 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-08 15:45:43,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-08 15:45:44,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 15:45:44,504 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:44,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:45:45,006 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:45,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:45:45,571 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:45,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:45:46,062 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:46,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:45:46,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:45:46,307 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-08 15:45:46,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 66 treesize of output 112 [2021-10-08 15:45:47,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:48,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:49,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:49,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:50,816 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:45:50,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 98 [2021-10-08 15:45:52,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:45:52,571 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-08 15:45:52,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 92 treesize of output 158 [2021-10-08 15:45:52,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:52,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:52,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:52,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:52,965 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:45:52,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:45:53,016 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:53,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:45:53,101 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:45:53,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055798587] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:53,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:45:53,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-10-08 15:45:53,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210401740] [2021-10-08 15:45:53,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-08 15:45:53,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:53,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-08 15:45:53,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2021-10-08 15:45:53,104 INFO L87 Difference]: Start difference. First operand 2555 states and 10078 transitions. Second operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:54,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:54,396 INFO L93 Difference]: Finished difference Result 2920 states and 10781 transitions. [2021-10-08 15:45:54,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 15:45:54,399 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-08 15:45:54,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:54,418 INFO L225 Difference]: With dead ends: 2920 [2021-10-08 15:45:54,418 INFO L226 Difference]: Without dead ends: 2920 [2021-10-08 15:45:54,419 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1124.9ms TimeCoverageRelationStatistics Valid=220, Invalid=772, Unknown=0, NotChecked=0, Total=992 [2021-10-08 15:45:54,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-10-08 15:45:54,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 2555. [2021-10-08 15:45:54,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 2262 states have (on average 4.374889478337754) internal successors, (9896), 2554 states have internal predecessors, (9896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:54,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 9896 transitions. [2021-10-08 15:45:54,518 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 9896 transitions. Word has length 23 [2021-10-08 15:45:54,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:54,518 INFO L470 AbstractCegarLoop]: Abstraction has 2555 states and 9896 transitions. [2021-10-08 15:45:54,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 9896 transitions. [2021-10-08 15:45:54,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 15:45:54,519 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:54,520 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:45:54,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-08 15:45:54,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-08 15:45:54,733 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:54,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:54,734 INFO L82 PathProgramCache]: Analyzing trace with hash -558146180, now seen corresponding path program 1 times [2021-10-08 15:45:54,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:54,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364535039] [2021-10-08 15:45:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:54,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:55,166 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:45:55,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:55,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364535039] [2021-10-08 15:45:55,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364535039] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:55,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624396020] [2021-10-08 15:45:55,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:55,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:55,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:45:55,169 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:45:55,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-08 15:45:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:55,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 15:45:55,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:45:55,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:45:55,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 15:45:55,618 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:55,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:45:55,671 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:55,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:45:55,733 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:55,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:45:55,794 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:55,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:45:55,841 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:45:55,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:45:55,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:55,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:55,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:55,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:45:56,003 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:45:56,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:45:56,052 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:56,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:45:56,097 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:45:56,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624396020] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:56,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:45:56,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-08 15:45:56,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646627269] [2021-10-08 15:45:56,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 15:45:56,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:56,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 15:45:56,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2021-10-08 15:45:56,101 INFO L87 Difference]: Start difference. First operand 2555 states and 9896 transitions. Second operand has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:56,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:56,746 INFO L93 Difference]: Finished difference Result 2557 states and 9897 transitions. [2021-10-08 15:45:56,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 15:45:56,746 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-08 15:45:56,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:56,762 INFO L225 Difference]: With dead ends: 2557 [2021-10-08 15:45:56,762 INFO L226 Difference]: Without dead ends: 2557 [2021-10-08 15:45:56,763 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 590.6ms TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2021-10-08 15:45:56,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2021-10-08 15:45:56,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2555. [2021-10-08 15:45:56,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 2262 states have (on average 4.374447391688771) internal successors, (9895), 2554 states have internal predecessors, (9895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 9895 transitions. [2021-10-08 15:45:56,877 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 9895 transitions. Word has length 23 [2021-10-08 15:45:56,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:56,880 INFO L470 AbstractCegarLoop]: Abstraction has 2555 states and 9895 transitions. [2021-10-08 15:45:56,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:56,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 9895 transitions. [2021-10-08 15:45:56,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 15:45:56,882 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:56,882 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:45:56,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-08 15:45:57,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:57,097 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:57,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:57,098 INFO L82 PathProgramCache]: Analyzing trace with hash -558146100, now seen corresponding path program 1 times [2021-10-08 15:45:57,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:57,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797223029] [2021-10-08 15:45:57,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:57,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:57,439 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:45:57,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:45:57,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797223029] [2021-10-08 15:45:57,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797223029] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:57,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217164156] [2021-10-08 15:45:57,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:57,441 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:45:57,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:45:57,442 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:45:57,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-08 15:45:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:45:57,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 15:45:57,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:45:57,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:45:57,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:45:57,907 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:57,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:45:57,958 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:57,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:45:58,019 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:58,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:45:58,086 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:58,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:45:58,132 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:45:58,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:45:58,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:45:58,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:45:58,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:45:58,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:45:58,264 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:45:58,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:45:58,307 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:45:58,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:45:58,347 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:45:58,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217164156] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:45:58,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:45:58,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-08 15:45:58,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821610822] [2021-10-08 15:45:58,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 15:45:58,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:45:58,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 15:45:58,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2021-10-08 15:45:58,350 INFO L87 Difference]: Start difference. First operand 2555 states and 9895 transitions. Second operand has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:58,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:45:58,989 INFO L93 Difference]: Finished difference Result 2556 states and 9895 transitions. [2021-10-08 15:45:58,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 15:45:58,990 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-08 15:45:58,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:45:59,001 INFO L225 Difference]: With dead ends: 2556 [2021-10-08 15:45:59,002 INFO L226 Difference]: Without dead ends: 2556 [2021-10-08 15:45:59,002 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 582.0ms TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2021-10-08 15:45:59,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2021-10-08 15:45:59,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2555. [2021-10-08 15:45:59,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 2262 states have (on average 4.374005305039788) internal successors, (9894), 2554 states have internal predecessors, (9894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 9894 transitions. [2021-10-08 15:45:59,135 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 9894 transitions. Word has length 23 [2021-10-08 15:45:59,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:45:59,136 INFO L470 AbstractCegarLoop]: Abstraction has 2555 states and 9894 transitions. [2021-10-08 15:45:59,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:45:59,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 9894 transitions. [2021-10-08 15:45:59,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-08 15:45:59,137 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:45:59,137 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:45:59,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-10-08 15:45:59,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-08 15:45:59,348 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:45:59,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:45:59,350 INFO L82 PathProgramCache]: Analyzing trace with hash -124355785, now seen corresponding path program 1 times [2021-10-08 15:45:59,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:45:59,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856558595] [2021-10-08 15:45:59,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:45:59,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:45:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:00,032 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:46:00,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:46:00,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856558595] [2021-10-08 15:46:00,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856558595] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:00,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301611955] [2021-10-08 15:46:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:00,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:46:00,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:46:00,034 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:46:00,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-08 15:46:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:00,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-08 15:46:00,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:46:00,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:46:00,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:46:00,529 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-08 15:46:00,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 707 treesize of output 705 [2021-10-08 15:46:01,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:46:02,087 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:02,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:46:02,614 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:02,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:46:03,645 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:03,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:46:04,318 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:04,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:46:04,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:46:04,578 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-08 15:46:04,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 78 treesize of output 124 [2021-10-08 15:46:06,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:08,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:08,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:08,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:09,898 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:46:09,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 107 [2021-10-08 15:46:11,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:46:12,042 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-08 15:46:12,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 104 treesize of output 170 [2021-10-08 15:46:12,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:12,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:12,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:12,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:12,414 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:46:12,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-08 15:46:12,489 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:12,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:46:12,524 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:12,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:12,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-08 15:46:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:46:12,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301611955] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:12,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:46:12,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-10-08 15:46:12,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421110247] [2021-10-08 15:46:12,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-08 15:46:12,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:46:12,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-08 15:46:12,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2021-10-08 15:46:12,587 INFO L87 Difference]: Start difference. First operand 2555 states and 9894 transitions. Second operand has 27 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:15,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:46:15,288 INFO L93 Difference]: Finished difference Result 3483 states and 12925 transitions. [2021-10-08 15:46:15,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-08 15:46:15,288 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-08 15:46:15,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:46:15,300 INFO L225 Difference]: With dead ends: 3483 [2021-10-08 15:46:15,301 INFO L226 Difference]: Without dead ends: 3483 [2021-10-08 15:46:15,302 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 2379.3ms TimeCoverageRelationStatistics Valid=381, Invalid=1511, Unknown=0, NotChecked=0, Total=1892 [2021-10-08 15:46:15,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2021-10-08 15:46:15,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 2725. [2021-10-08 15:46:15,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2725 states, 2432 states have (on average 4.5160361842105265) internal successors, (10983), 2724 states have internal predecessors, (10983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:15,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 10983 transitions. [2021-10-08 15:46:15,404 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 10983 transitions. Word has length 24 [2021-10-08 15:46:15,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:46:15,405 INFO L470 AbstractCegarLoop]: Abstraction has 2725 states and 10983 transitions. [2021-10-08 15:46:15,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:15,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 10983 transitions. [2021-10-08 15:46:15,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-08 15:46:15,406 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:46:15,406 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:46:15,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-08 15:46:15,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:46:15,622 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:46:15,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:46:15,622 INFO L82 PathProgramCache]: Analyzing trace with hash -124355783, now seen corresponding path program 1 times [2021-10-08 15:46:15,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:46:15,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680162557] [2021-10-08 15:46:15,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:15,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:46:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:16,202 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:46:16,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:46:16,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680162557] [2021-10-08 15:46:16,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680162557] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:16,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215383667] [2021-10-08 15:46:16,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:16,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:46:16,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:46:16,204 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:46:16,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-08 15:46:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:16,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-08 15:46:16,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:46:16,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:46:16,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:46:16,819 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-08 15:46:16,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 300 treesize of output 322 [2021-10-08 15:46:18,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 15:46:18,151 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:18,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:46:19,181 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:19,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:46:19,825 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:19,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:46:19,976 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:19,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:46:20,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:46:20,895 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-08 15:46:20,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 78 treesize of output 124 [2021-10-08 15:46:23,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:24,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:24,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:25,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:26,305 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:46:26,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 105 [2021-10-08 15:46:28,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:46:28,999 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-08 15:46:29,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 104 treesize of output 170 [2021-10-08 15:46:29,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:29,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:29,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:29,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:29,382 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:46:29,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:46:29,438 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:29,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:46:29,488 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:29,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:29,561 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:46:29,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215383667] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:29,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:46:29,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-10-08 15:46:29,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391972065] [2021-10-08 15:46:29,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-08 15:46:29,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:46:29,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-08 15:46:29,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2021-10-08 15:46:29,563 INFO L87 Difference]: Start difference. First operand 2725 states and 10983 transitions. Second operand has 27 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:32,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:46:32,429 INFO L93 Difference]: Finished difference Result 3335 states and 12355 transitions. [2021-10-08 15:46:32,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 15:46:32,430 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-08 15:46:32,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:46:32,446 INFO L225 Difference]: With dead ends: 3335 [2021-10-08 15:46:32,446 INFO L226 Difference]: Without dead ends: 3335 [2021-10-08 15:46:32,447 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 2140.1ms TimeCoverageRelationStatistics Valid=386, Invalid=1506, Unknown=0, NotChecked=0, Total=1892 [2021-10-08 15:46:32,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2021-10-08 15:46:32,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 2544. [2021-10-08 15:46:32,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 2251 states have (on average 4.3616170590848515) internal successors, (9818), 2543 states have internal predecessors, (9818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:32,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 9818 transitions. [2021-10-08 15:46:32,524 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 9818 transitions. Word has length 24 [2021-10-08 15:46:32,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:46:32,524 INFO L470 AbstractCegarLoop]: Abstraction has 2544 states and 9818 transitions. [2021-10-08 15:46:32,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:32,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 9818 transitions. [2021-10-08 15:46:32,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-08 15:46:32,531 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:46:32,531 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:46:32,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-08 15:46:32,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-08 15:46:32,746 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:46:32,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:46:32,747 INFO L82 PathProgramCache]: Analyzing trace with hash -124355862, now seen corresponding path program 1 times [2021-10-08 15:46:32,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:46:32,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895467979] [2021-10-08 15:46:32,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:32,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:46:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:33,252 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:46:33,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:46:33,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895467979] [2021-10-08 15:46:33,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895467979] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:33,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310900708] [2021-10-08 15:46:33,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:33,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:46:33,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:46:33,254 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:46:33,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-08 15:46:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:33,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:46:33,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:46:33,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:46:33,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 15:46:33,997 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:33,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:46:34,071 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:34,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:46:34,134 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:34,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:46:34,208 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:34,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:46:34,256 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:46:34,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:46:34,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:34,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:34,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:34,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:34,395 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:46:34,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:46:34,453 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:34,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:46:34,510 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:34,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:46:34,544 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:46:34,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310900708] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:34,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:46:34,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-10-08 15:46:34,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081758297] [2021-10-08 15:46:34,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 15:46:34,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:46:34,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 15:46:34,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2021-10-08 15:46:34,547 INFO L87 Difference]: Start difference. First operand 2544 states and 9818 transitions. Second operand has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:35,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:46:35,412 INFO L93 Difference]: Finished difference Result 2567 states and 9850 transitions. [2021-10-08 15:46:35,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 15:46:35,413 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-08 15:46:35,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:46:35,421 INFO L225 Difference]: With dead ends: 2567 [2021-10-08 15:46:35,421 INFO L226 Difference]: Without dead ends: 2567 [2021-10-08 15:46:35,422 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 805.2ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 15:46:35,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2021-10-08 15:46:35,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2544. [2021-10-08 15:46:35,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 2251 states have (on average 4.356730342070191) internal successors, (9807), 2543 states have internal predecessors, (9807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:35,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 9807 transitions. [2021-10-08 15:46:35,493 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 9807 transitions. Word has length 24 [2021-10-08 15:46:35,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:46:35,493 INFO L470 AbstractCegarLoop]: Abstraction has 2544 states and 9807 transitions. [2021-10-08 15:46:35,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:35,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 9807 transitions. [2021-10-08 15:46:35,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-08 15:46:35,494 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:46:35,494 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:46:35,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-08 15:46:35,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-08 15:46:35,708 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:46:35,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:46:35,709 INFO L82 PathProgramCache]: Analyzing trace with hash -124355782, now seen corresponding path program 1 times [2021-10-08 15:46:35,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:46:35,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529767928] [2021-10-08 15:46:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:35,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:46:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:46:36,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:46:36,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529767928] [2021-10-08 15:46:36,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529767928] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:36,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042105953] [2021-10-08 15:46:36,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:36,105 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:46:36,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:46:36,106 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:46:36,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-08 15:46:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:36,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:46:36,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:46:36,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:46:36,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:46:36,810 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:36,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:46:36,869 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:36,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:46:36,942 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:36,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:46:37,017 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:37,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:46:37,068 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:46:37,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:46:37,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:37,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:37,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:37,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:46:37,236 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:46:37,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:46:37,294 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:37,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:46:37,351 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:37,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:46:37,403 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:46:37,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042105953] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:37,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:46:37,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-10-08 15:46:37,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816053142] [2021-10-08 15:46:37,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 15:46:37,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:46:37,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 15:46:37,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2021-10-08 15:46:37,407 INFO L87 Difference]: Start difference. First operand 2544 states and 9807 transitions. Second operand has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:38,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:46:38,258 INFO L93 Difference]: Finished difference Result 2556 states and 9818 transitions. [2021-10-08 15:46:38,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 15:46:38,258 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-08 15:46:38,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:46:38,267 INFO L225 Difference]: With dead ends: 2556 [2021-10-08 15:46:38,267 INFO L226 Difference]: Without dead ends: 2556 [2021-10-08 15:46:38,268 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 860.7ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 15:46:38,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2021-10-08 15:46:38,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2544. [2021-10-08 15:46:38,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 2251 states have (on average 4.351843625055531) internal successors, (9796), 2543 states have internal predecessors, (9796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:38,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 9796 transitions. [2021-10-08 15:46:38,331 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 9796 transitions. Word has length 24 [2021-10-08 15:46:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:46:38,331 INFO L470 AbstractCegarLoop]: Abstraction has 2544 states and 9796 transitions. [2021-10-08 15:46:38,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 9796 transitions. [2021-10-08 15:46:38,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 15:46:38,332 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:46:38,332 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:46:38,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-08 15:46:38,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-08 15:46:38,533 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:46:38,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:46:38,534 INFO L82 PathProgramCache]: Analyzing trace with hash 426301211, now seen corresponding path program 1 times [2021-10-08 15:46:38,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:46:38,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504747215] [2021-10-08 15:46:38,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:38,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:46:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:38,898 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:46:38,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:46:38,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504747215] [2021-10-08 15:46:38,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504747215] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:38,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813279636] [2021-10-08 15:46:38,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:38,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:46:38,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:46:38,900 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:46:38,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-08 15:46:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:39,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-08 15:46:39,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:46:39,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 15:46:39,682 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:39,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:46:39,740 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:39,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:46:39,803 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:39,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:46:39,872 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:39,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:46:39,924 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:39,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:46:39,980 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:39,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:46:40,021 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:46:40,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813279636] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:40,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:46:40,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-10-08 15:46:40,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870972698] [2021-10-08 15:46:40,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-08 15:46:40,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:46:40,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-08 15:46:40,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-10-08 15:46:40,024 INFO L87 Difference]: Start difference. First operand 2544 states and 9796 transitions. Second operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:40,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:46:40,775 INFO L93 Difference]: Finished difference Result 2616 states and 10018 transitions. [2021-10-08 15:46:40,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 15:46:40,775 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-08 15:46:40,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:46:40,786 INFO L225 Difference]: With dead ends: 2616 [2021-10-08 15:46:40,786 INFO L226 Difference]: Without dead ends: 2616 [2021-10-08 15:46:40,787 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 686.4ms TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2021-10-08 15:46:40,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2021-10-08 15:46:40,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2568. [2021-10-08 15:46:40,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 2275 states have (on average 4.35956043956044) internal successors, (9918), 2567 states have internal predecessors, (9918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:40,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 9918 transitions. [2021-10-08 15:46:40,854 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 9918 transitions. Word has length 25 [2021-10-08 15:46:40,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:46:40,854 INFO L470 AbstractCegarLoop]: Abstraction has 2568 states and 9918 transitions. [2021-10-08 15:46:40,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 9918 transitions. [2021-10-08 15:46:40,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 15:46:40,855 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:46:40,855 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:46:40,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-08 15:46:41,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:46:41,056 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:46:41,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:46:41,057 INFO L82 PathProgramCache]: Analyzing trace with hash 426301308, now seen corresponding path program 1 times [2021-10-08 15:46:41,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:46:41,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180670473] [2021-10-08 15:46:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:41,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:46:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:41,371 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:46:41,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:46:41,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180670473] [2021-10-08 15:46:41,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180670473] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:41,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680367558] [2021-10-08 15:46:41,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:41,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:46:41,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:46:41,374 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:46:41,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-08 15:46:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:42,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-08 15:46:42,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:46:42,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:46:42,204 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:42,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:46:42,265 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:42,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:46:42,326 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:42,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:46:42,392 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:42,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:46:42,443 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:42,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:46:42,497 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:42,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:46:42,539 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:46:42,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680367558] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:42,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:46:42,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-10-08 15:46:42,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915214528] [2021-10-08 15:46:42,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-08 15:46:42,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:46:42,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-08 15:46:42,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2021-10-08 15:46:42,542 INFO L87 Difference]: Start difference. First operand 2568 states and 9918 transitions. Second operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:43,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:46:43,152 INFO L93 Difference]: Finished difference Result 2604 states and 9981 transitions. [2021-10-08 15:46:43,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 15:46:43,152 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-08 15:46:43,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:46:43,163 INFO L225 Difference]: With dead ends: 2604 [2021-10-08 15:46:43,163 INFO L226 Difference]: Without dead ends: 2604 [2021-10-08 15:46:43,164 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 491.6ms TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2021-10-08 15:46:43,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2021-10-08 15:46:43,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2568. [2021-10-08 15:46:43,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 2275 states have (on average 4.354285714285714) internal successors, (9906), 2567 states have internal predecessors, (9906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:43,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 9906 transitions. [2021-10-08 15:46:43,241 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 9906 transitions. Word has length 25 [2021-10-08 15:46:43,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:46:43,241 INFO L470 AbstractCegarLoop]: Abstraction has 2568 states and 9906 transitions. [2021-10-08 15:46:43,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:43,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 9906 transitions. [2021-10-08 15:46:43,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 15:46:43,242 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:46:43,242 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:46:43,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-08 15:46:43,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:46:43,457 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:46:43,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:46:43,459 INFO L82 PathProgramCache]: Analyzing trace with hash 426301310, now seen corresponding path program 1 times [2021-10-08 15:46:43,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:46:43,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306673478] [2021-10-08 15:46:43,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:43,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:46:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:44,062 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:46:44,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:46:44,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306673478] [2021-10-08 15:46:44,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306673478] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:44,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726652197] [2021-10-08 15:46:44,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:44,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:46:44,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:46:44,064 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:46:44,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-08 15:46:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:44,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-08 15:46:44,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:46:44,867 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:46:44,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 363 treesize of output 377 [2021-10-08 15:46:45,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 15:46:46,521 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:46,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:46:47,063 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:47,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:46:47,701 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:47,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:46:47,832 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:47,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:46:48,630 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-08 15:46:48,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 78 treesize of output 124 [2021-10-08 15:46:50,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:51,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:52,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:53,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:53,583 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:46:53,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 105 [2021-10-08 15:46:55,960 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-08 15:46:55,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 104 treesize of output 170 [2021-10-08 15:46:56,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:56,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:56,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:56,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:56,281 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:46:56,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:46:56,320 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:56,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:56,348 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:46:56,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:46:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:46:56,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726652197] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:56,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:46:56,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2021-10-08 15:46:56,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406069492] [2021-10-08 15:46:56,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-08 15:46:56,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:46:56,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-08 15:46:56,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2021-10-08 15:46:56,426 INFO L87 Difference]: Start difference. First operand 2568 states and 9906 transitions. Second operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:57,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:46:57,896 INFO L93 Difference]: Finished difference Result 3540 states and 13680 transitions. [2021-10-08 15:46:57,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 15:46:57,897 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-08 15:46:57,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:46:57,908 INFO L225 Difference]: With dead ends: 3540 [2021-10-08 15:46:57,908 INFO L226 Difference]: Without dead ends: 3540 [2021-10-08 15:46:57,908 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1323.9ms TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2021-10-08 15:46:57,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3540 states. [2021-10-08 15:46:57,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3540 to 2805. [2021-10-08 15:46:57,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 2512 states have (on average 4.593550955414012) internal successors, (11539), 2804 states have internal predecessors, (11539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:57,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 11539 transitions. [2021-10-08 15:46:58,000 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 11539 transitions. Word has length 25 [2021-10-08 15:46:58,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:46:58,002 INFO L470 AbstractCegarLoop]: Abstraction has 2805 states and 11539 transitions. [2021-10-08 15:46:58,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:46:58,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 11539 transitions. [2021-10-08 15:46:58,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 15:46:58,003 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:46:58,003 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:46:58,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-08 15:46:58,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:46:58,217 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:46:58,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:46:58,218 INFO L82 PathProgramCache]: Analyzing trace with hash 426301311, now seen corresponding path program 1 times [2021-10-08 15:46:58,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:46:58,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522253629] [2021-10-08 15:46:58,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:58,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:46:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:58,990 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:46:58,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:46:58,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522253629] [2021-10-08 15:46:58,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522253629] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:46:58,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662797248] [2021-10-08 15:46:58,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:46:58,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:46:58,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:46:58,993 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:46:58,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-08 15:46:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:46:59,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-08 15:46:59,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:46:59,884 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:46:59,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 108 [2021-10-08 15:47:00,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:47:01,601 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:01,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:47:02,274 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:02,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:47:02,962 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:02,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:47:03,113 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:03,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:47:03,850 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-08 15:47:03,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 78 treesize of output 124 [2021-10-08 15:47:06,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:07,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:07,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:08,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:08,800 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:47:08,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 107 [2021-10-08 15:47:10,872 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-08 15:47:10,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 104 treesize of output 170 [2021-10-08 15:47:11,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:11,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:11,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:11,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:11,284 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:47:11,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-08 15:47:11,314 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:11,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:11,374 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:11,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:11,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-08 15:47:11,514 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:47:11,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662797248] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:47:11,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:47:11,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2021-10-08 15:47:11,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456779355] [2021-10-08 15:47:11,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-08 15:47:11,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:47:11,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-08 15:47:11,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2021-10-08 15:47:11,517 INFO L87 Difference]: Start difference. First operand 2805 states and 11539 transitions. Second operand has 28 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:14,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:47:14,399 INFO L93 Difference]: Finished difference Result 3291 states and 12709 transitions. [2021-10-08 15:47:14,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 15:47:14,400 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-08 15:47:14,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:47:14,410 INFO L225 Difference]: With dead ends: 3291 [2021-10-08 15:47:14,410 INFO L226 Difference]: Without dead ends: 3291 [2021-10-08 15:47:14,411 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 2567.3ms TimeCoverageRelationStatistics Valid=368, Invalid=1354, Unknown=0, NotChecked=0, Total=1722 [2021-10-08 15:47:14,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3291 states. [2021-10-08 15:47:14,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3291 to 2805. [2021-10-08 15:47:14,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 2512 states have (on average 4.494426751592357) internal successors, (11290), 2804 states have internal predecessors, (11290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:14,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 11290 transitions. [2021-10-08 15:47:14,474 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 11290 transitions. Word has length 25 [2021-10-08 15:47:14,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:47:14,474 INFO L470 AbstractCegarLoop]: Abstraction has 2805 states and 11290 transitions. [2021-10-08 15:47:14,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:14,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 11290 transitions. [2021-10-08 15:47:14,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 15:47:14,475 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:47:14,476 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:47:14,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-08 15:47:14,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:47:14,689 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:47:14,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:47:14,690 INFO L82 PathProgramCache]: Analyzing trace with hash 492555982, now seen corresponding path program 1 times [2021-10-08 15:47:14,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:47:14,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266190618] [2021-10-08 15:47:14,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:47:14,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:47:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:47:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-10-08 15:47:14,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:47:14,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266190618] [2021-10-08 15:47:14,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266190618] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:47:14,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:47:14,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:47:14,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518156237] [2021-10-08 15:47:14,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:47:14,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:47:14,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:47:14,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:47:14,742 INFO L87 Difference]: Start difference. First operand 2805 states and 11290 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:14,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:47:14,784 INFO L93 Difference]: Finished difference Result 2991 states and 11666 transitions. [2021-10-08 15:47:14,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:47:14,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-08 15:47:14,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:47:14,799 INFO L225 Difference]: With dead ends: 2991 [2021-10-08 15:47:14,799 INFO L226 Difference]: Without dead ends: 2991 [2021-10-08 15:47:14,800 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:47:14,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2021-10-08 15:47:14,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2604. [2021-10-08 15:47:14,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2604 states, 2353 states have (on average 4.4904377390565235) internal successors, (10566), 2603 states have internal predecessors, (10566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:14,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2604 states to 2604 states and 10566 transitions. [2021-10-08 15:47:14,890 INFO L78 Accepts]: Start accepts. Automaton has 2604 states and 10566 transitions. Word has length 25 [2021-10-08 15:47:14,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:47:14,890 INFO L470 AbstractCegarLoop]: Abstraction has 2604 states and 10566 transitions. [2021-10-08 15:47:14,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:14,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2604 states and 10566 transitions. [2021-10-08 15:47:14,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 15:47:14,891 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:47:14,892 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:47:14,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-08 15:47:14,892 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:47:14,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:47:14,893 INFO L82 PathProgramCache]: Analyzing trace with hash 492555983, now seen corresponding path program 1 times [2021-10-08 15:47:14,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:47:14,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437115342] [2021-10-08 15:47:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:47:14,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:47:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:47:15,495 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:47:15,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:47:15,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437115342] [2021-10-08 15:47:15,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437115342] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:47:15,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292404918] [2021-10-08 15:47:15,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:47:15,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:47:15,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:47:15,497 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:47:15,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-08 15:47:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:47:16,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-08 15:47:16,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:47:16,500 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:47:16,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 108 [2021-10-08 15:47:18,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:47:18,922 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:18,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:47:19,844 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:19,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:47:20,578 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:20,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:47:21,390 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-08 15:47:21,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 82 treesize of output 128 [2021-10-08 15:47:23,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:24,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:25,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:26,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:27,626 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:47:27,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 116 [2021-10-08 15:47:30,114 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-08 15:47:30,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 108 treesize of output 174 [2021-10-08 15:47:30,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:30,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:30,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:30,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:30,486 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:47:30,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:47:30,510 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:30,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:30,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-08 15:47:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:47:30,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292404918] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:47:30,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:47:30,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2021-10-08 15:47:30,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258882532] [2021-10-08 15:47:30,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-08 15:47:30,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:47:30,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-08 15:47:30,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=547, Unknown=0, NotChecked=0, Total=650 [2021-10-08 15:47:30,593 INFO L87 Difference]: Start difference. First operand 2604 states and 10566 transitions. Second operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:33,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:47:33,060 INFO L93 Difference]: Finished difference Result 3211 states and 13145 transitions. [2021-10-08 15:47:33,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 15:47:33,061 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-08 15:47:33,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:47:33,073 INFO L225 Difference]: With dead ends: 3211 [2021-10-08 15:47:33,073 INFO L226 Difference]: Without dead ends: 3211 [2021-10-08 15:47:33,074 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 1782.6ms TimeCoverageRelationStatistics Valid=319, Invalid=1087, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 15:47:33,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3211 states. [2021-10-08 15:47:33,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3211 to 2806. [2021-10-08 15:47:33,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2555 states have (on average 4.734246575342466) internal successors, (12096), 2805 states have internal predecessors, (12096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:33,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 12096 transitions. [2021-10-08 15:47:33,189 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 12096 transitions. Word has length 25 [2021-10-08 15:47:33,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:47:33,190 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 12096 transitions. [2021-10-08 15:47:33,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:33,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 12096 transitions. [2021-10-08 15:47:33,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 15:47:33,191 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:47:33,191 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:47:33,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-08 15:47:33,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-08 15:47:33,405 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:47:33,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:47:33,408 INFO L82 PathProgramCache]: Analyzing trace with hash 492555985, now seen corresponding path program 1 times [2021-10-08 15:47:33,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:47:33,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028270685] [2021-10-08 15:47:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:47:33,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:47:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:47:33,992 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:47:33,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:47:33,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028270685] [2021-10-08 15:47:33,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028270685] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:47:33,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999138888] [2021-10-08 15:47:33,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:47:33,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:47:33,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:47:33,994 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:47:33,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-08 15:47:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:47:34,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-08 15:47:34,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:47:35,092 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:47:35,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 186 treesize of output 212 [2021-10-08 15:47:36,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:47:37,316 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:37,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:47:37,987 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:37,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:47:38,758 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:38,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:47:39,574 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-08 15:47:39,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 82 treesize of output 128 [2021-10-08 15:47:41,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:47:42,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:47:43,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:47:44,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:47:45,299 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:47:45,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 114 [2021-10-08 15:47:47,748 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-08 15:47:47,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 108 treesize of output 174 [2021-10-08 15:47:47,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:47:47,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:47:48,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:47:48,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:47:48,048 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:47:48,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:47:48,067 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:48,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:47:48,178 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:47:48,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999138888] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:47:48,179 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:47:48,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-10-08 15:47:48,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245233726] [2021-10-08 15:47:48,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-08 15:47:48,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:47:48,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-08 15:47:48,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2021-10-08 15:47:48,181 INFO L87 Difference]: Start difference. First operand 2806 states and 12096 transitions. Second operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:50,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:47:50,747 INFO L93 Difference]: Finished difference Result 3210 states and 12943 transitions. [2021-10-08 15:47:50,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 15:47:50,747 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-08 15:47:50,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:47:50,759 INFO L225 Difference]: With dead ends: 3210 [2021-10-08 15:47:50,760 INFO L226 Difference]: Without dead ends: 3210 [2021-10-08 15:47:50,760 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1744.6ms TimeCoverageRelationStatistics Valid=323, Invalid=1159, Unknown=0, NotChecked=0, Total=1482 [2021-10-08 15:47:50,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2021-10-08 15:47:50,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 2806. [2021-10-08 15:47:50,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2555 states have (on average 4.655577299412916) internal successors, (11895), 2805 states have internal predecessors, (11895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:50,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 11895 transitions. [2021-10-08 15:47:50,863 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 11895 transitions. Word has length 25 [2021-10-08 15:47:50,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:47:50,863 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 11895 transitions. [2021-10-08 15:47:50,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 11895 transitions. [2021-10-08 15:47:50,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 15:47:50,864 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:47:50,864 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:47:50,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-08 15:47:51,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-08 15:47:51,079 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:47:51,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:47:51,082 INFO L82 PathProgramCache]: Analyzing trace with hash 492555906, now seen corresponding path program 1 times [2021-10-08 15:47:51,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:47:51,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908782421] [2021-10-08 15:47:51,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:47:51,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:47:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:47:51,450 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:47:51,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:47:51,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908782421] [2021-10-08 15:47:51,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908782421] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:47:51,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445836282] [2021-10-08 15:47:51,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:47:51,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:47:51,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:47:51,452 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:47:51,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-08 15:47:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:47:52,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:47:52,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:47:52,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:47:52,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:47:52,610 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:52,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:47:52,670 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:52,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:47:52,731 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:52,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:47:52,782 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:47:52,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:47:52,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:52,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:52,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:52,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:52,907 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:47:52,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:47:52,953 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:52,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:47:53,035 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:47:53,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445836282] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:47:53,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:47:53,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-10-08 15:47:53,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957850836] [2021-10-08 15:47:53,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 15:47:53,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:47:53,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 15:47:53,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2021-10-08 15:47:53,038 INFO L87 Difference]: Start difference. First operand 2806 states and 11895 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:53,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:47:53,897 INFO L93 Difference]: Finished difference Result 2809 states and 11897 transitions. [2021-10-08 15:47:53,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:47:53,897 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-08 15:47:53,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:47:53,910 INFO L225 Difference]: With dead ends: 2809 [2021-10-08 15:47:53,910 INFO L226 Difference]: Without dead ends: 2809 [2021-10-08 15:47:53,911 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 746.2ms TimeCoverageRelationStatistics Valid=269, Invalid=991, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 15:47:53,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2021-10-08 15:47:54,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2806. [2021-10-08 15:47:54,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2555 states have (on average 4.655185909980431) internal successors, (11894), 2805 states have internal predecessors, (11894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:54,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 11894 transitions. [2021-10-08 15:47:54,030 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 11894 transitions. Word has length 25 [2021-10-08 15:47:54,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:47:54,030 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 11894 transitions. [2021-10-08 15:47:54,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:54,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 11894 transitions. [2021-10-08 15:47:54,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 15:47:54,031 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:47:54,031 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:47:54,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-08 15:47:54,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-08 15:47:54,232 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:47:54,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:47:54,234 INFO L82 PathProgramCache]: Analyzing trace with hash 492555986, now seen corresponding path program 1 times [2021-10-08 15:47:54,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:47:54,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911565256] [2021-10-08 15:47:54,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:47:54,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:47:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:47:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:47:54,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:47:54,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911565256] [2021-10-08 15:47:54,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911565256] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:47:54,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050983336] [2021-10-08 15:47:54,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:47:54,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:47:54,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:47:54,624 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:47:54,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-08 15:47:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:47:55,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:47:55,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:47:55,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:47:55,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:47:55,835 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:55,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:47:55,887 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:55,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:47:55,955 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:47:55,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:47:56,003 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:47:56,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:47:56,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:56,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:56,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:56,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:47:56,128 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:47:56,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:47:56,177 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:56,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:47:56,249 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:47:56,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050983336] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:47:56,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:47:56,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-10-08 15:47:56,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472438457] [2021-10-08 15:47:56,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 15:47:56,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:47:56,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 15:47:56,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2021-10-08 15:47:56,251 INFO L87 Difference]: Start difference. First operand 2806 states and 11894 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:57,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:47:57,080 INFO L93 Difference]: Finished difference Result 2808 states and 11895 transitions. [2021-10-08 15:47:57,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:47:57,080 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-08 15:47:57,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:47:57,089 INFO L225 Difference]: With dead ends: 2808 [2021-10-08 15:47:57,090 INFO L226 Difference]: Without dead ends: 2808 [2021-10-08 15:47:57,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 716.0ms TimeCoverageRelationStatistics Valid=269, Invalid=991, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 15:47:57,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2808 states. [2021-10-08 15:47:57,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 2806. [2021-10-08 15:47:57,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2555 states have (on average 4.654794520547945) internal successors, (11893), 2805 states have internal predecessors, (11893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:57,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 11893 transitions. [2021-10-08 15:47:57,154 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 11893 transitions. Word has length 25 [2021-10-08 15:47:57,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:47:57,154 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 11893 transitions. [2021-10-08 15:47:57,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:47:57,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 11893 transitions. [2021-10-08 15:47:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:47:57,155 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:47:57,155 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:47:57,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-08 15:47:57,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-08 15:47:57,356 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:47:57,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:47:57,357 INFO L82 PathProgramCache]: Analyzing trace with hash 330434966, now seen corresponding path program 1 times [2021-10-08 15:47:57,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:47:57,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849840548] [2021-10-08 15:47:57,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:47:57,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:47:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:47:57,778 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:47:57,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:47:57,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849840548] [2021-10-08 15:47:57,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849840548] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:47:57,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174053515] [2021-10-08 15:47:57,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:47:57,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:47:57,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:47:57,784 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:47:57,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-08 15:47:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:47:58,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 15:47:58,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:47:58,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 15:47:59,040 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:59,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:47:59,106 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:59,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:47:59,173 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:59,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:47:59,241 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:59,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:47:59,304 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:59,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:47:59,422 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:59,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:47:59,536 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:47:59,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:47:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:47:59,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174053515] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:47:59,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:47:59,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-10-08 15:47:59,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46008658] [2021-10-08 15:47:59,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-08 15:47:59,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:47:59,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-08 15:47:59,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2021-10-08 15:47:59,556 INFO L87 Difference]: Start difference. First operand 2806 states and 11893 transitions. Second operand has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:00,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:00,514 INFO L93 Difference]: Finished difference Result 4250 states and 17607 transitions. [2021-10-08 15:48:00,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 15:48:00,515 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:48:00,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:00,530 INFO L225 Difference]: With dead ends: 4250 [2021-10-08 15:48:00,530 INFO L226 Difference]: Without dead ends: 4250 [2021-10-08 15:48:00,531 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 918.3ms TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2021-10-08 15:48:00,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2021-10-08 15:48:00,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 3280. [2021-10-08 15:48:00,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3280 states, 3029 states have (on average 4.810168372400132) internal successors, (14570), 3279 states have internal predecessors, (14570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:00,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3280 states to 3280 states and 14570 transitions. [2021-10-08 15:48:00,610 INFO L78 Accepts]: Start accepts. Automaton has 3280 states and 14570 transitions. Word has length 26 [2021-10-08 15:48:00,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:00,611 INFO L470 AbstractCegarLoop]: Abstraction has 3280 states and 14570 transitions. [2021-10-08 15:48:00,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:00,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3280 states and 14570 transitions. [2021-10-08 15:48:00,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:48:00,611 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:00,611 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:00,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-10-08 15:48:00,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-08 15:48:00,813 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:48:00,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:00,814 INFO L82 PathProgramCache]: Analyzing trace with hash 330435063, now seen corresponding path program 1 times [2021-10-08 15:48:00,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:00,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872696804] [2021-10-08 15:48:00,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:00,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:01,151 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:48:01,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:01,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872696804] [2021-10-08 15:48:01,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872696804] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:01,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174095784] [2021-10-08 15:48:01,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:01,153 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:01,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:01,154 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:01,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-08 15:48:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:02,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 15:48:02,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:02,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:48:02,549 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:02,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:48:02,610 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:02,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:48:02,682 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:02,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:48:02,751 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:02,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:48:02,809 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:02,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:48:02,876 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:02,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:48:02,989 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:02,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:48:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:48:03,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174095784] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:03,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:03,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-10-08 15:48:03,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951292152] [2021-10-08 15:48:03,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-08 15:48:03,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:03,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-08 15:48:03,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2021-10-08 15:48:03,012 INFO L87 Difference]: Start difference. First operand 3280 states and 14570 transitions. Second operand has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:03,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:03,648 INFO L93 Difference]: Finished difference Result 4013 states and 16385 transitions. [2021-10-08 15:48:03,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 15:48:03,648 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:48:03,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:03,662 INFO L225 Difference]: With dead ends: 4013 [2021-10-08 15:48:03,662 INFO L226 Difference]: Without dead ends: 4013 [2021-10-08 15:48:03,663 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 610.9ms TimeCoverageRelationStatistics Valid=191, Invalid=621, Unknown=0, NotChecked=0, Total=812 [2021-10-08 15:48:03,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4013 states. [2021-10-08 15:48:03,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4013 to 3280. [2021-10-08 15:48:03,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3280 states, 3029 states have (on average 4.653681082865632) internal successors, (14096), 3279 states have internal predecessors, (14096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:03,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3280 states to 3280 states and 14096 transitions. [2021-10-08 15:48:03,842 INFO L78 Accepts]: Start accepts. Automaton has 3280 states and 14096 transitions. Word has length 26 [2021-10-08 15:48:03,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:03,843 INFO L470 AbstractCegarLoop]: Abstraction has 3280 states and 14096 transitions. [2021-10-08 15:48:03,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:03,843 INFO L276 IsEmpty]: Start isEmpty. Operand 3280 states and 14096 transitions. [2021-10-08 15:48:03,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:48:03,844 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:03,844 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:03,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:04,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-08 15:48:04,058 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:48:04,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:04,060 INFO L82 PathProgramCache]: Analyzing trace with hash 330600605, now seen corresponding path program 1 times [2021-10-08 15:48:04,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:04,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494989341] [2021-10-08 15:48:04,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:04,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:05,218 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:48:05,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:05,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494989341] [2021-10-08 15:48:05,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494989341] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:05,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854404850] [2021-10-08 15:48:05,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:05,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:05,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:05,221 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:05,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-08 15:48:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:06,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-08 15:48:06,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:06,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:48:06,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:48:06,606 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-08 15:48:06,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 100 [2021-10-08 15:48:07,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 15:48:07,732 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:07,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:48:08,219 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:08,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:48:08,704 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:08,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:48:09,337 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:09,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:48:09,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:48:10,054 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-08 15:48:10,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-08 15:48:11,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:12,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:13,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:13,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:13,914 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:48:13,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 96 [2021-10-08 15:48:15,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:48:15,849 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-08 15:48:15,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-08 15:48:16,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:16,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:16,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:16,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:16,425 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:48:16,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-08 15:48:16,498 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:16,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:48:16,545 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:16,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:16,611 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 15:48:16,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:48:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:48:16,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854404850] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:16,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:16,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 30 [2021-10-08 15:48:16,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947247139] [2021-10-08 15:48:16,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-08 15:48:16,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:16,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-08 15:48:16,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=864, Unknown=0, NotChecked=0, Total=992 [2021-10-08 15:48:16,676 INFO L87 Difference]: Start difference. First operand 3280 states and 14096 transitions. Second operand has 32 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:20,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:20,755 INFO L93 Difference]: Finished difference Result 7535 states and 30782 transitions. [2021-10-08 15:48:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 15:48:20,758 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:48:20,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:20,788 INFO L225 Difference]: With dead ends: 7535 [2021-10-08 15:48:20,788 INFO L226 Difference]: Without dead ends: 7535 [2021-10-08 15:48:20,790 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 3552.2ms TimeCoverageRelationStatistics Valid=466, Invalid=2084, Unknown=0, NotChecked=0, Total=2550 [2021-10-08 15:48:20,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7535 states. [2021-10-08 15:48:20,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7535 to 3280. [2021-10-08 15:48:20,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3280 states, 3029 states have (on average 4.575437438098382) internal successors, (13859), 3279 states have internal predecessors, (13859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:20,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3280 states to 3280 states and 13859 transitions. [2021-10-08 15:48:20,934 INFO L78 Accepts]: Start accepts. Automaton has 3280 states and 13859 transitions. Word has length 26 [2021-10-08 15:48:20,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:20,934 INFO L470 AbstractCegarLoop]: Abstraction has 3280 states and 13859 transitions. [2021-10-08 15:48:20,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:20,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3280 states and 13859 transitions. [2021-10-08 15:48:20,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:48:20,935 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:20,935 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:20,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:21,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:21,141 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:48:21,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:21,142 INFO L82 PathProgramCache]: Analyzing trace with hash 330600606, now seen corresponding path program 1 times [2021-10-08 15:48:21,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:21,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75164249] [2021-10-08 15:48:21,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:21,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:22,368 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:48:22,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:22,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75164249] [2021-10-08 15:48:22,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75164249] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:22,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396739460] [2021-10-08 15:48:22,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:22,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:22,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:22,370 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:22,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-08 15:48:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:23,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-08 15:48:23,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:23,748 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:48:23,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 170 treesize of output 196 [2021-10-08 15:48:24,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:48:24,839 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:24,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:48:25,604 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:25,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:48:25,745 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:25,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:48:26,243 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:26,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:48:26,828 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-08 15:48:26,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-08 15:48:28,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:29,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:30,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:30,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:31,065 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:48:31,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 98 [2021-10-08 15:48:33,381 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-08 15:48:33,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-08 15:48:33,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:33,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:33,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:33,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:34,010 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:48:34,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-08 15:48:34,075 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:34,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:34,156 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:34,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:34,282 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:34,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:34,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-08 15:48:34,368 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:48:34,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396739460] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:34,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:34,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 33 [2021-10-08 15:48:34,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421509578] [2021-10-08 15:48:34,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-08 15:48:34,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:34,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-08 15:48:34,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1053, Unknown=0, NotChecked=0, Total=1190 [2021-10-08 15:48:34,371 INFO L87 Difference]: Start difference. First operand 3280 states and 13859 transitions. Second operand has 35 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:37,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:37,473 INFO L93 Difference]: Finished difference Result 3539 states and 14415 transitions. [2021-10-08 15:48:37,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:48:37,474 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:48:37,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:37,484 INFO L225 Difference]: With dead ends: 3539 [2021-10-08 15:48:37,484 INFO L226 Difference]: Without dead ends: 3539 [2021-10-08 15:48:37,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 3294.9ms TimeCoverageRelationStatistics Valid=432, Invalid=1920, Unknown=0, NotChecked=0, Total=2352 [2021-10-08 15:48:37,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2021-10-08 15:48:37,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 3043. [2021-10-08 15:48:37,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 2792 states have (on average 4.526146131805158) internal successors, (12637), 3042 states have internal predecessors, (12637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:37,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 12637 transitions. [2021-10-08 15:48:37,548 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 12637 transitions. Word has length 26 [2021-10-08 15:48:37,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:37,548 INFO L470 AbstractCegarLoop]: Abstraction has 3043 states and 12637 transitions. [2021-10-08 15:48:37,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:37,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 12637 transitions. [2021-10-08 15:48:37,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:48:37,549 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:37,549 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:37,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:37,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,27 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:37,752 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:48:37,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:37,753 INFO L82 PathProgramCache]: Analyzing trace with hash 332116754, now seen corresponding path program 1 times [2021-10-08 15:48:37,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:37,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621346558] [2021-10-08 15:48:37,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:37,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:38,267 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:48:38,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:38,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621346558] [2021-10-08 15:48:38,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621346558] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:38,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038526882] [2021-10-08 15:48:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:38,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:38,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:38,269 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:38,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-08 15:48:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:39,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-08 15:48:39,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:39,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:48:39,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 15:48:39,772 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:39,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:48:39,847 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:39,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:48:39,924 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:39,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:48:40,001 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:40,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:48:40,076 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:48:40,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:48:40,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:40,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:40,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:40,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:48:40,244 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:48:40,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:48:40,312 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:40,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:48:40,380 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:40,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:48:40,490 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:40,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:48:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:48:40,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038526882] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:40,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:40,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-10-08 15:48:40,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178504246] [2021-10-08 15:48:40,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-08 15:48:40,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:40,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-08 15:48:40,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2021-10-08 15:48:40,512 INFO L87 Difference]: Start difference. First operand 3043 states and 12637 transitions. Second operand has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:41,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:41,413 INFO L93 Difference]: Finished difference Result 4075 states and 14945 transitions. [2021-10-08 15:48:41,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 15:48:41,414 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:48:41,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:41,427 INFO L225 Difference]: With dead ends: 4075 [2021-10-08 15:48:41,428 INFO L226 Difference]: Without dead ends: 4075 [2021-10-08 15:48:41,428 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1012.1ms TimeCoverageRelationStatistics Valid=307, Invalid=1025, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 15:48:41,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4075 states. [2021-10-08 15:48:41,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4075 to 3043. [2021-10-08 15:48:41,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 2792 states have (on average 4.380014326647564) internal successors, (12229), 3042 states have internal predecessors, (12229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:41,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 12229 transitions. [2021-10-08 15:48:41,505 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 12229 transitions. Word has length 26 [2021-10-08 15:48:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:41,505 INFO L470 AbstractCegarLoop]: Abstraction has 3043 states and 12229 transitions. [2021-10-08 15:48:41,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 12229 transitions. [2021-10-08 15:48:41,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:48:41,506 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:41,506 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:41,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-10-08 15:48:41,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-10-08 15:48:41,720 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:48:41,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:41,721 INFO L82 PathProgramCache]: Analyzing trace with hash 332116834, now seen corresponding path program 1 times [2021-10-08 15:48:41,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:41,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920856313] [2021-10-08 15:48:41,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:41,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:42,239 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:48:42,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:42,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920856313] [2021-10-08 15:48:42,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920856313] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:42,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652563238] [2021-10-08 15:48:42,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:42,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:42,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:42,241 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:42,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-08 15:48:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:43,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-08 15:48:43,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:43,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:48:43,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:48:43,791 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:43,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:48:43,864 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:43,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:48:43,945 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:43,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:48:44,020 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:44,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:48:44,092 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:48:44,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:48:44,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:44,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:44,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:44,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:44,265 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:48:44,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:48:44,333 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:44,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:48:44,408 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:44,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:48:44,533 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:44,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:48:44,555 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:48:44,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652563238] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:44,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:44,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-10-08 15:48:44,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214692724] [2021-10-08 15:48:44,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-08 15:48:44,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:44,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-08 15:48:44,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2021-10-08 15:48:44,558 INFO L87 Difference]: Start difference. First operand 3043 states and 12229 transitions. Second operand has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:45,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:45,485 INFO L93 Difference]: Finished difference Result 3871 states and 14016 transitions. [2021-10-08 15:48:45,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 15:48:45,485 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:48:45,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:45,498 INFO L225 Difference]: With dead ends: 3871 [2021-10-08 15:48:45,498 INFO L226 Difference]: Without dead ends: 3871 [2021-10-08 15:48:45,499 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1056.6ms TimeCoverageRelationStatistics Valid=307, Invalid=1025, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 15:48:45,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3871 states. [2021-10-08 15:48:45,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3871 to 3043. [2021-10-08 15:48:45,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 2792 states have (on average 4.233882521489972) internal successors, (11821), 3042 states have internal predecessors, (11821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:45,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 11821 transitions. [2021-10-08 15:48:45,602 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 11821 transitions. Word has length 26 [2021-10-08 15:48:45,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:45,602 INFO L470 AbstractCegarLoop]: Abstraction has 3043 states and 11821 transitions. [2021-10-08 15:48:45,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:45,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 11821 transitions. [2021-10-08 15:48:45,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:48:45,603 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:45,603 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:45,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:45,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-10-08 15:48:45,815 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:48:45,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:45,815 INFO L82 PathProgramCache]: Analyzing trace with hash 332269351, now seen corresponding path program 1 times [2021-10-08 15:48:45,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:45,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341303015] [2021-10-08 15:48:45,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:45,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:48:46,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:46,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341303015] [2021-10-08 15:48:46,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341303015] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:46,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341446670] [2021-10-08 15:48:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:46,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:46,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:46,530 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:46,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-08 15:48:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:47,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-08 15:48:47,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:48,066 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:48:48,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 137 [2021-10-08 15:48:48,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:48:49,022 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:49,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:48:49,478 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:49,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:48:50,013 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:50,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:48:50,591 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:50,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:48:51,307 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-08 15:48:51,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-08 15:48:52,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:53,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:54,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:55,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:55,828 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:48:55,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 98 [2021-10-08 15:48:58,361 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-08 15:48:58,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-08 15:48:58,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:58,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:58,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:58,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:58,805 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:48:58,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-08 15:48:58,828 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:58,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:58,869 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:48:58,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:48:58,930 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 15:48:58,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:48:58,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-08 15:48:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:48:58,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341446670] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:58,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:58,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2021-10-08 15:48:58,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167411630] [2021-10-08 15:48:58,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-08 15:48:58,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:58,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-08 15:48:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2021-10-08 15:48:58,969 INFO L87 Difference]: Start difference. First operand 3043 states and 11821 transitions. Second operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:00,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:00,363 INFO L93 Difference]: Finished difference Result 3667 states and 13291 transitions. [2021-10-08 15:49:00,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 15:49:00,364 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:49:00,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:00,374 INFO L225 Difference]: With dead ends: 3667 [2021-10-08 15:49:00,374 INFO L226 Difference]: Without dead ends: 3667 [2021-10-08 15:49:00,375 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1546.6ms TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2021-10-08 15:49:00,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3667 states. [2021-10-08 15:49:00,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3667 to 3043. [2021-10-08 15:49:00,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 2792 states have (on average 4.160816618911174) internal successors, (11617), 3042 states have internal predecessors, (11617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:00,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 11617 transitions. [2021-10-08 15:49:00,441 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 11617 transitions. Word has length 26 [2021-10-08 15:49:00,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:00,441 INFO L470 AbstractCegarLoop]: Abstraction has 3043 states and 11617 transitions. [2021-10-08 15:49:00,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:00,441 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 11617 transitions. [2021-10-08 15:49:00,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:49:00,442 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:00,442 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:00,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-08 15:49:00,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:49:00,643 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:49:00,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:00,643 INFO L82 PathProgramCache]: Analyzing trace with hash 332269353, now seen corresponding path program 1 times [2021-10-08 15:49:00,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:00,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993359906] [2021-10-08 15:49:00,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:00,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:01,370 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:49:01,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:01,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993359906] [2021-10-08 15:49:01,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993359906] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:01,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053237559] [2021-10-08 15:49:01,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:01,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:49:01,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:49:01,373 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:49:01,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-08 15:49:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:02,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-08 15:49:02,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:49:03,114 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:49:03,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 363 treesize of output 377 [2021-10-08 15:49:03,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 15:49:04,070 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:04,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:49:04,526 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:04,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:49:05,084 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:05,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:49:05,645 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:05,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:49:06,358 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-08 15:49:06,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-08 15:49:07,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:08,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:09,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:10,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:10,927 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:49:10,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 96 [2021-10-08 15:49:13,049 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-08 15:49:13,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-08 15:49:13,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:13,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:13,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:13,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:13,386 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:49:13,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-08 15:49:13,433 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:13,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:13,467 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:13,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:13,529 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 15:49:13,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:49:13,583 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:49:13,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053237559] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:13,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:49:13,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2021-10-08 15:49:13,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277851650] [2021-10-08 15:49:13,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-08 15:49:13,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:13,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-08 15:49:13,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2021-10-08 15:49:13,585 INFO L87 Difference]: Start difference. First operand 3043 states and 11617 transitions. Second operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:15,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:15,112 INFO L93 Difference]: Finished difference Result 3476 states and 12605 transitions. [2021-10-08 15:49:15,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 15:49:15,112 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:49:15,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:15,122 INFO L225 Difference]: With dead ends: 3476 [2021-10-08 15:49:15,122 INFO L226 Difference]: Without dead ends: 3476 [2021-10-08 15:49:15,123 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1597.2ms TimeCoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2021-10-08 15:49:15,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3476 states. [2021-10-08 15:49:15,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 2839. [2021-10-08 15:49:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2839 states, 2588 states have (on average 4.12982998454405) internal successors, (10688), 2838 states have internal predecessors, (10688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:15,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2839 states to 2839 states and 10688 transitions. [2021-10-08 15:49:15,182 INFO L78 Accepts]: Start accepts. Automaton has 2839 states and 10688 transitions. Word has length 26 [2021-10-08 15:49:15,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:15,182 INFO L470 AbstractCegarLoop]: Abstraction has 2839 states and 10688 transitions. [2021-10-08 15:49:15,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:15,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2839 states and 10688 transitions. [2021-10-08 15:49:15,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:49:15,183 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:15,183 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:15,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-10-08 15:49:15,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-10-08 15:49:15,385 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:49:15,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:15,386 INFO L82 PathProgramCache]: Analyzing trace with hash 328171996, now seen corresponding path program 1 times [2021-10-08 15:49:15,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:15,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885398215] [2021-10-08 15:49:15,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:15,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:15,433 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-10-08 15:49:15,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:15,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885398215] [2021-10-08 15:49:15,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885398215] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:49:15,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:49:15,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:49:15,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110865947] [2021-10-08 15:49:15,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:49:15,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:15,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:49:15,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:49:15,435 INFO L87 Difference]: Start difference. First operand 2839 states and 10688 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:15,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:15,495 INFO L93 Difference]: Finished difference Result 4717 states and 17901 transitions. [2021-10-08 15:49:15,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:49:15,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:49:15,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:15,518 INFO L225 Difference]: With dead ends: 4717 [2021-10-08 15:49:15,518 INFO L226 Difference]: Without dead ends: 4717 [2021-10-08 15:49:15,519 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:49:15,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4717 states. [2021-10-08 15:49:15,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4717 to 3153. [2021-10-08 15:49:15,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3153 states, 2902 states have (on average 4.6374913852515505) internal successors, (13458), 3152 states have internal predecessors, (13458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:15,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 13458 transitions. [2021-10-08 15:49:15,702 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 13458 transitions. Word has length 26 [2021-10-08 15:49:15,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:15,702 INFO L470 AbstractCegarLoop]: Abstraction has 3153 states and 13458 transitions. [2021-10-08 15:49:15,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:15,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 13458 transitions. [2021-10-08 15:49:15,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:49:15,703 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:15,704 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:15,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-08 15:49:15,704 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:49:15,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:15,705 INFO L82 PathProgramCache]: Analyzing trace with hash 328171980, now seen corresponding path program 1 times [2021-10-08 15:49:15,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:15,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987100260] [2021-10-08 15:49:15,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:15,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:16,192 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:49:16,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:16,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987100260] [2021-10-08 15:49:16,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987100260] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:16,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387437004] [2021-10-08 15:49:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:16,193 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:49:16,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:49:16,195 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:49:16,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-08 15:49:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:17,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:49:17,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:49:17,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:49:18,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 15:49:18,076 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:18,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:49:18,150 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:18,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:49:18,229 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:18,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:49:18,315 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:18,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:49:18,376 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:49:18,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:49:18,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:18,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:18,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:18,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:49:18,543 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:49:18,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:49:18,603 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:18,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:49:18,669 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:18,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:49:18,725 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:18,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:49:18,771 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:49:18,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387437004] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:18,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:49:18,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-10-08 15:49:18,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968168211] [2021-10-08 15:49:18,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 15:49:18,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:18,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 15:49:18,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-10-08 15:49:18,773 INFO L87 Difference]: Start difference. First operand 3153 states and 13458 transitions. Second operand has 25 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:19,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:19,579 INFO L93 Difference]: Finished difference Result 4403 states and 16695 transitions. [2021-10-08 15:49:19,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 15:49:19,579 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:49:19,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:19,593 INFO L225 Difference]: With dead ends: 4403 [2021-10-08 15:49:19,593 INFO L226 Difference]: Without dead ends: 4403 [2021-10-08 15:49:19,594 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1016.8ms TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 15:49:19,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4403 states. [2021-10-08 15:49:19,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4403 to 3153. [2021-10-08 15:49:19,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3153 states, 2902 states have (on average 4.529290144727774) internal successors, (13144), 3152 states have internal predecessors, (13144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 13144 transitions. [2021-10-08 15:49:19,753 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 13144 transitions. Word has length 26 [2021-10-08 15:49:19,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:19,753 INFO L470 AbstractCegarLoop]: Abstraction has 3153 states and 13144 transitions. [2021-10-08 15:49:19,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:19,754 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 13144 transitions. [2021-10-08 15:49:19,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:49:19,755 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:19,755 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:19,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-10-08 15:49:19,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-10-08 15:49:19,969 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:49:19,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:19,971 INFO L82 PathProgramCache]: Analyzing trace with hash 328171981, now seen corresponding path program 1 times [2021-10-08 15:49:19,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:19,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030213939] [2021-10-08 15:49:19,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:19,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:49:20,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:20,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030213939] [2021-10-08 15:49:20,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030213939] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:20,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177312144] [2021-10-08 15:49:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:20,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:49:20,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:49:20,462 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:49:20,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-08 15:49:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:22,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-08 15:49:22,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:49:22,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:49:22,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:49:22,333 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:22,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:49:22,412 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:22,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:49:22,503 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:22,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:49:22,598 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:22,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:49:22,661 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:49:22,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:49:22,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:49:22,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:49:22,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:49:22,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:49:22,841 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:49:22,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:49:22,915 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:22,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:49:22,984 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:22,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:49:23,046 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:23,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:49:23,080 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:49:23,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177312144] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:23,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:49:23,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-10-08 15:49:23,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686168689] [2021-10-08 15:49:23,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 15:49:23,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:23,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 15:49:23,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-10-08 15:49:23,083 INFO L87 Difference]: Start difference. First operand 3153 states and 13144 transitions. Second operand has 25 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:24,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:24,018 INFO L93 Difference]: Finished difference Result 4089 states and 15489 transitions. [2021-10-08 15:49:24,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 15:49:24,018 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:49:24,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:24,035 INFO L225 Difference]: With dead ends: 4089 [2021-10-08 15:49:24,035 INFO L226 Difference]: Without dead ends: 4089 [2021-10-08 15:49:24,036 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1039.1ms TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 15:49:24,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4089 states. [2021-10-08 15:49:24,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4089 to 3153. [2021-10-08 15:49:24,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3153 states, 2902 states have (on average 4.421088904203997) internal successors, (12830), 3152 states have internal predecessors, (12830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:24,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 12830 transitions. [2021-10-08 15:49:24,105 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 12830 transitions. Word has length 26 [2021-10-08 15:49:24,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:24,106 INFO L470 AbstractCegarLoop]: Abstraction has 3153 states and 12830 transitions. [2021-10-08 15:49:24,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:24,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 12830 transitions. [2021-10-08 15:49:24,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:49:24,106 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:24,107 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:24,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-08 15:49:24,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-10-08 15:49:24,314 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:49:24,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:24,316 INFO L82 PathProgramCache]: Analyzing trace with hash 328171982, now seen corresponding path program 1 times [2021-10-08 15:49:24,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:24,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112753843] [2021-10-08 15:49:24,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:24,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:25,373 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:49:25,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:25,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112753843] [2021-10-08 15:49:25,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112753843] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:25,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780548763] [2021-10-08 15:49:25,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:25,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:49:25,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:49:25,376 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:49:25,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-08 15:49:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:27,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 15:49:27,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:49:27,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:49:27,349 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:27,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:49:27,437 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:27,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:49:27,527 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:27,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:49:27,611 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:27,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:49:27,688 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:27,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:49:27,882 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:27,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:49:27,952 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:27,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:49:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:49:27,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780548763] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:27,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:49:27,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11] total 30 [2021-10-08 15:49:27,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987754120] [2021-10-08 15:49:27,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-08 15:49:27,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:27,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-08 15:49:27,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2021-10-08 15:49:27,997 INFO L87 Difference]: Start difference. First operand 3153 states and 12830 transitions. Second operand has 32 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:29,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:29,437 INFO L93 Difference]: Finished difference Result 3775 states and 14283 transitions. [2021-10-08 15:49:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 15:49:29,437 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:49:29,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:29,450 INFO L225 Difference]: With dead ends: 3775 [2021-10-08 15:49:29,450 INFO L226 Difference]: Without dead ends: 3775 [2021-10-08 15:49:29,451 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 1612.1ms TimeCoverageRelationStatistics Valid=255, Invalid=1305, Unknown=0, NotChecked=0, Total=1560 [2021-10-08 15:49:29,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3775 states. [2021-10-08 15:49:29,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3775 to 3153. [2021-10-08 15:49:29,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3153 states, 2902 states have (on average 4.312887663680221) internal successors, (12516), 3152 states have internal predecessors, (12516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:29,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 12516 transitions. [2021-10-08 15:49:29,543 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 12516 transitions. Word has length 26 [2021-10-08 15:49:29,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:29,544 INFO L470 AbstractCegarLoop]: Abstraction has 3153 states and 12516 transitions. [2021-10-08 15:49:29,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:29,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 12516 transitions. [2021-10-08 15:49:29,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:49:29,545 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:29,545 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:29,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-10-08 15:49:29,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-10-08 15:49:29,759 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:49:29,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:29,760 INFO L82 PathProgramCache]: Analyzing trace with hash 328171903, now seen corresponding path program 1 times [2021-10-08 15:49:29,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:29,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734993622] [2021-10-08 15:49:29,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:29,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:49:31,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:31,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734993622] [2021-10-08 15:49:31,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734993622] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:31,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761959756] [2021-10-08 15:49:31,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:31,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:49:31,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:49:31,016 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:49:31,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-08 15:49:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:32,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 15:49:32,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:49:32,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 15:49:33,061 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:33,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:49:33,148 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:33,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:49:33,226 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:33,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:49:33,315 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:33,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:49:33,390 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:33,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:49:33,471 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:33,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:49:33,542 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:33,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:49:33,585 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:49:33,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761959756] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:33,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:49:33,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11] total 30 [2021-10-08 15:49:33,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025702653] [2021-10-08 15:49:33,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-08 15:49:33,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:33,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-08 15:49:33,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=842, Unknown=0, NotChecked=0, Total=992 [2021-10-08 15:49:33,588 INFO L87 Difference]: Start difference. First operand 3153 states and 12516 transitions. Second operand has 32 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:34,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:34,964 INFO L93 Difference]: Finished difference Result 3461 states and 13077 transitions. [2021-10-08 15:49:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 15:49:34,965 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:49:34,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:34,976 INFO L225 Difference]: With dead ends: 3461 [2021-10-08 15:49:34,976 INFO L226 Difference]: Without dead ends: 3461 [2021-10-08 15:49:34,977 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1570.2ms TimeCoverageRelationStatistics Valid=270, Invalid=1290, Unknown=0, NotChecked=0, Total=1560 [2021-10-08 15:49:34,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3461 states. [2021-10-08 15:49:35,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3461 to 3153. [2021-10-08 15:49:35,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3153 states, 2902 states have (on average 4.204686423156444) internal successors, (12202), 3152 states have internal predecessors, (12202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:35,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 12202 transitions. [2021-10-08 15:49:35,100 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 12202 transitions. Word has length 26 [2021-10-08 15:49:35,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:35,100 INFO L470 AbstractCegarLoop]: Abstraction has 3153 states and 12202 transitions. [2021-10-08 15:49:35,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:35,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 12202 transitions. [2021-10-08 15:49:35,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:49:35,101 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:35,101 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:35,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-08 15:49:35,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-10-08 15:49:35,302 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:49:35,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:35,304 INFO L82 PathProgramCache]: Analyzing trace with hash 753223869, now seen corresponding path program 1 times [2021-10-08 15:49:35,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:35,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041050733] [2021-10-08 15:49:35,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:35,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:36,244 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-08 15:49:36,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:36,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041050733] [2021-10-08 15:49:36,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041050733] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:36,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136973342] [2021-10-08 15:49:36,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:36,245 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:49:36,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:49:36,246 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:49:36,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-08 15:49:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:38,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-08 15:49:38,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:49:38,154 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:49:38,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 170 treesize of output 196 [2021-10-08 15:49:39,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:49:40,048 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:49:40,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:49:40,640 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:49:40,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:49:41,869 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:49:41,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:49:42,131 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-08 15:49:42,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 78 treesize of output 124 [2021-10-08 15:49:43,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:49:45,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:49:46,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:49:47,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:49:47,512 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:49:47,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 109 [2021-10-08 15:49:49,748 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-08 15:49:49,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 104 treesize of output 170 [2021-10-08 15:49:49,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:49:50,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:49:50,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:49:50,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:49:50,115 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:49:50,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-08 15:49:50,158 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:50,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:49:50,186 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:49:50,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:49:50,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-08 15:49:50,260 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:49:50,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136973342] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:50,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:49:50,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 27 [2021-10-08 15:49:50,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357656053] [2021-10-08 15:49:50,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-08 15:49:50,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:50,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-08 15:49:50,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=687, Unknown=0, NotChecked=0, Total=812 [2021-10-08 15:49:50,261 INFO L87 Difference]: Start difference. First operand 3153 states and 12202 transitions. Second operand has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:52,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:52,973 INFO L93 Difference]: Finished difference Result 3930 states and 15412 transitions. [2021-10-08 15:49:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 15:49:52,974 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:49:52,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:52,993 INFO L225 Difference]: With dead ends: 3930 [2021-10-08 15:49:52,993 INFO L226 Difference]: Without dead ends: 3930 [2021-10-08 15:49:52,994 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 2280.6ms TimeCoverageRelationStatistics Valid=331, Invalid=1391, Unknown=0, NotChecked=0, Total=1722 [2021-10-08 15:49:53,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3930 states. [2021-10-08 15:49:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3930 to 3407. [2021-10-08 15:49:53,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3407 states, 3156 states have (on average 4.4569074778200255) internal successors, (14066), 3406 states have internal predecessors, (14066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:53,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3407 states to 3407 states and 14066 transitions. [2021-10-08 15:49:53,092 INFO L78 Accepts]: Start accepts. Automaton has 3407 states and 14066 transitions. Word has length 26 [2021-10-08 15:49:53,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:53,093 INFO L470 AbstractCegarLoop]: Abstraction has 3407 states and 14066 transitions. [2021-10-08 15:49:53,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:49:53,093 INFO L276 IsEmpty]: Start isEmpty. Operand 3407 states and 14066 transitions. [2021-10-08 15:49:53,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:49:53,094 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:53,094 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:53,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-08 15:49:53,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-10-08 15:49:53,309 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:49:53,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:53,310 INFO L82 PathProgramCache]: Analyzing trace with hash 753223871, now seen corresponding path program 1 times [2021-10-08 15:49:53,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:53,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49198772] [2021-10-08 15:49:53,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:53,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:53,925 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:49:53,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:53,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49198772] [2021-10-08 15:49:53,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49198772] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:49:53,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373975477] [2021-10-08 15:49:53,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:53,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:49:53,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:49:53,928 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:49:53,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-08 15:49:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:55,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-08 15:49:55,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:49:55,905 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:49:55,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 257 treesize of output 271 [2021-10-08 15:49:58,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:49:58,974 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:49:58,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:49:59,741 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:49:59,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:50:00,539 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:00,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:50:00,795 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-08 15:50:00,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 78 treesize of output 124 [2021-10-08 15:50:03,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:04,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:05,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:07,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:07,887 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:50:07,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 105 [2021-10-08 15:50:09,826 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-08 15:50:09,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 104 treesize of output 170 [2021-10-08 15:50:10,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:10,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:10,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:10,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:10,154 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:50:10,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:50:10,183 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:50:10,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:10,215 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:50:10,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:50:10,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373975477] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:50:10,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:50:10,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2021-10-08 15:50:10,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940797937] [2021-10-08 15:50:10,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-08 15:50:10,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:10,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-08 15:50:10,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2021-10-08 15:50:10,332 INFO L87 Difference]: Start difference. First operand 3407 states and 14066 transitions. Second operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:12,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:12,627 INFO L93 Difference]: Finished difference Result 3943 states and 15197 transitions. [2021-10-08 15:50:12,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 15:50:12,628 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:50:12,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:12,641 INFO L225 Difference]: With dead ends: 3943 [2021-10-08 15:50:12,641 INFO L226 Difference]: Without dead ends: 3943 [2021-10-08 15:50:12,642 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 2000.5ms TimeCoverageRelationStatistics Valid=371, Invalid=1269, Unknown=0, NotChecked=0, Total=1640 [2021-10-08 15:50:12,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2021-10-08 15:50:12,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3166. [2021-10-08 15:50:12,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 2915 states have (on average 4.199313893653517) internal successors, (12241), 3165 states have internal predecessors, (12241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:12,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 12241 transitions. [2021-10-08 15:50:12,751 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 12241 transitions. Word has length 26 [2021-10-08 15:50:12,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:12,751 INFO L470 AbstractCegarLoop]: Abstraction has 3166 states and 12241 transitions. [2021-10-08 15:50:12,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:12,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 12241 transitions. [2021-10-08 15:50:12,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:50:12,752 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:12,752 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:12,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-08 15:50:12,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,37 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:50:12,953 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:50:12,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:12,957 INFO L82 PathProgramCache]: Analyzing trace with hash 753223792, now seen corresponding path program 1 times [2021-10-08 15:50:12,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:12,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656309556] [2021-10-08 15:50:12,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:12,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:13,419 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:50:13,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:13,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656309556] [2021-10-08 15:50:13,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656309556] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:50:13,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624344699] [2021-10-08 15:50:13,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:13,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:50:13,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:50:13,424 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:50:13,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-08 15:50:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:15,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-08 15:50:15,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:50:15,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:50:15,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:50:15,577 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:15,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:50:15,650 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:15,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:50:15,730 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:15,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:50:15,789 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:50:15,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:50:15,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:15,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:15,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:15,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:15,946 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:50:15,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:50:16,005 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:50:16,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:50:16,063 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:50:16,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:50:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:50:16,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624344699] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:50:16,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:50:16,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2021-10-08 15:50:16,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468870812] [2021-10-08 15:50:16,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-08 15:50:16,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:16,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-08 15:50:16,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2021-10-08 15:50:16,126 INFO L87 Difference]: Start difference. First operand 3166 states and 12241 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:17,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:17,151 INFO L93 Difference]: Finished difference Result 3207 states and 12308 transitions. [2021-10-08 15:50:17,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 15:50:17,152 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:50:17,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:17,161 INFO L225 Difference]: With dead ends: 3207 [2021-10-08 15:50:17,161 INFO L226 Difference]: Without dead ends: 3207 [2021-10-08 15:50:17,162 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 902.7ms TimeCoverageRelationStatistics Valid=268, Invalid=992, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 15:50:17,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2021-10-08 15:50:17,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 3166. [2021-10-08 15:50:17,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 2915 states have (on average 4.194854202401372) internal successors, (12228), 3165 states have internal predecessors, (12228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:17,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 12228 transitions. [2021-10-08 15:50:17,233 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 12228 transitions. Word has length 26 [2021-10-08 15:50:17,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:17,233 INFO L470 AbstractCegarLoop]: Abstraction has 3166 states and 12228 transitions. [2021-10-08 15:50:17,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:17,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 12228 transitions. [2021-10-08 15:50:17,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 15:50:17,234 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:17,234 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:17,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-10-08 15:50:17,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,38 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:50:17,451 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:50:17,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:17,452 INFO L82 PathProgramCache]: Analyzing trace with hash 753223872, now seen corresponding path program 1 times [2021-10-08 15:50:17,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:17,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656415451] [2021-10-08 15:50:17,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:17,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:18,280 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:50:18,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:18,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656415451] [2021-10-08 15:50:18,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656415451] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:50:18,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727892734] [2021-10-08 15:50:18,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:18,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:50:18,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:50:18,282 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:50:18,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-08 15:50:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:20,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-08 15:50:20,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:50:20,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:50:20,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:50:20,470 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:20,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:50:20,547 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:20,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:50:20,620 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:20,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:50:20,696 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:50:20,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:50:20,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:50:20,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:50:20,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:50:20,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:50:20,852 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:50:20,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:50:20,915 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:50:20,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:50:20,992 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:50:20,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:50:21,077 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:50:21,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727892734] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:50:21,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:50:21,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 29 [2021-10-08 15:50:21,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165371176] [2021-10-08 15:50:21,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-08 15:50:21,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:21,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-08 15:50:21,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=807, Unknown=0, NotChecked=0, Total=930 [2021-10-08 15:50:21,080 INFO L87 Difference]: Start difference. First operand 3166 states and 12228 transitions. Second operand has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:22,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:22,934 INFO L93 Difference]: Finished difference Result 3194 states and 12269 transitions. [2021-10-08 15:50:22,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 15:50:22,935 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-08 15:50:22,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:22,944 INFO L225 Difference]: With dead ends: 3194 [2021-10-08 15:50:22,944 INFO L226 Difference]: Without dead ends: 3194 [2021-10-08 15:50:22,945 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 1837.5ms TimeCoverageRelationStatistics Valid=406, Invalid=1756, Unknown=0, NotChecked=0, Total=2162 [2021-10-08 15:50:22,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2021-10-08 15:50:22,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 3166. [2021-10-08 15:50:22,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 2915 states have (on average 4.190394511149228) internal successors, (12215), 3165 states have internal predecessors, (12215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:23,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 12215 transitions. [2021-10-08 15:50:23,008 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 12215 transitions. Word has length 26 [2021-10-08 15:50:23,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:23,008 INFO L470 AbstractCegarLoop]: Abstraction has 3166 states and 12215 transitions. [2021-10-08 15:50:23,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:23,008 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 12215 transitions. [2021-10-08 15:50:23,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:50:23,009 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:23,009 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:23,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-10-08 15:50:23,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,39 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:50:23,218 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:50:23,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:23,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1653735349, now seen corresponding path program 1 times [2021-10-08 15:50:23,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:23,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430100665] [2021-10-08 15:50:23,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:23,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:23,614 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:50:23,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:23,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430100665] [2021-10-08 15:50:23,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430100665] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:50:23,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951878625] [2021-10-08 15:50:23,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:23,615 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:50:23,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:50:23,618 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:50:23,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-08 15:50:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:25,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 15:50:25,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:50:25,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:50:25,895 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:25,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:50:25,958 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:25,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:50:26,018 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:26,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:50:26,074 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:50:26,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:50:26,127 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:50:26,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:50:26,199 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:50:26,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951878625] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:50:26,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:50:26,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-08 15:50:26,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748721533] [2021-10-08 15:50:26,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 15:50:26,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:26,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 15:50:26,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2021-10-08 15:50:26,202 INFO L87 Difference]: Start difference. First operand 3166 states and 12215 transitions. Second operand has 21 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:27,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:27,175 INFO L93 Difference]: Finished difference Result 3257 states and 12489 transitions. [2021-10-08 15:50:27,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 15:50:27,176 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:50:27,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:27,186 INFO L225 Difference]: With dead ends: 3257 [2021-10-08 15:50:27,186 INFO L226 Difference]: Without dead ends: 3257 [2021-10-08 15:50:27,187 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 676.2ms TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-10-08 15:50:27,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2021-10-08 15:50:27,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 3192. [2021-10-08 15:50:27,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 2941 states have (on average 4.198911934716083) internal successors, (12349), 3191 states have internal predecessors, (12349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:27,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 12349 transitions. [2021-10-08 15:50:27,247 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 12349 transitions. Word has length 27 [2021-10-08 15:50:27,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:27,247 INFO L470 AbstractCegarLoop]: Abstraction has 3192 states and 12349 transitions. [2021-10-08 15:50:27,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:27,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 12349 transitions. [2021-10-08 15:50:27,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:50:27,248 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:27,248 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:27,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-08 15:50:27,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,40 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:50:27,449 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:50:27,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:27,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1653735446, now seen corresponding path program 1 times [2021-10-08 15:50:27,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:27,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968830920] [2021-10-08 15:50:27,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:27,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:27,813 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:50:27,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:27,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968830920] [2021-10-08 15:50:27,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968830920] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:50:27,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094546263] [2021-10-08 15:50:27,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:27,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:50:27,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:50:27,815 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:50:27,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-08 15:50:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:29,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 15:50:29,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:50:29,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:50:29,939 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:29,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:50:30,012 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:30,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:50:30,066 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:30,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:50:30,129 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:50:30,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:50:30,186 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:50:30,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:50:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:50:30,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094546263] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:50:30,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:50:30,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-08 15:50:30,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037406376] [2021-10-08 15:50:30,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 15:50:30,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:30,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 15:50:30,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2021-10-08 15:50:30,260 INFO L87 Difference]: Start difference. First operand 3192 states and 12349 transitions. Second operand has 21 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:31,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:31,205 INFO L93 Difference]: Finished difference Result 3244 states and 12448 transitions. [2021-10-08 15:50:31,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 15:50:31,206 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:50:31,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:31,216 INFO L225 Difference]: With dead ends: 3244 [2021-10-08 15:50:31,216 INFO L226 Difference]: Without dead ends: 3244 [2021-10-08 15:50:31,216 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 673.0ms TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-10-08 15:50:31,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3244 states. [2021-10-08 15:50:31,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3244 to 3192. [2021-10-08 15:50:31,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 2941 states have (on average 4.19449166950017) internal successors, (12336), 3191 states have internal predecessors, (12336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:31,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 12336 transitions. [2021-10-08 15:50:31,364 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 12336 transitions. Word has length 27 [2021-10-08 15:50:31,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:31,365 INFO L470 AbstractCegarLoop]: Abstraction has 3192 states and 12336 transitions. [2021-10-08 15:50:31,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:31,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 12336 transitions. [2021-10-08 15:50:31,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:50:31,365 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:31,366 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:31,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-10-08 15:50:31,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,41 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:50:31,567 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:50:31,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:31,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1653735448, now seen corresponding path program 1 times [2021-10-08 15:50:31,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:31,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879992532] [2021-10-08 15:50:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:31,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:32,658 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:50:32,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:32,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879992532] [2021-10-08 15:50:32,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879992532] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:50:32,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84739972] [2021-10-08 15:50:32,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:32,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:50:32,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:50:32,661 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:50:32,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-08 15:50:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:34,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-08 15:50:34,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:50:34,843 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:50:34,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 137 [2021-10-08 15:50:36,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:50:37,081 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:37,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:50:37,624 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:37,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:50:38,225 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:38,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:50:39,003 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-08 15:50:39,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 78 treesize of output 124 [2021-10-08 15:50:42,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:50:43,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:50:44,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:50:44,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:50:45,347 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:50:45,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 107 [2021-10-08 15:50:48,766 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-08 15:50:48,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 104 treesize of output 170 [2021-10-08 15:50:49,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:50:49,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:50:49,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:50:49,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:50:49,417 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:50:49,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-08 15:50:49,452 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:50:49,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:49,521 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:50:49,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:50:49,715 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:50:49,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84739972] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:50:49,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:50:49,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 33 [2021-10-08 15:50:49,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334353845] [2021-10-08 15:50:49,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-08 15:50:49,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:49,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-08 15:50:49,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1060, Unknown=0, NotChecked=0, Total=1190 [2021-10-08 15:50:49,717 INFO L87 Difference]: Start difference. First operand 3192 states and 12336 transitions. Second operand has 35 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:53,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:53,398 INFO L93 Difference]: Finished difference Result 4461 states and 16901 transitions. [2021-10-08 15:50:53,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 15:50:53,399 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:50:53,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:53,420 INFO L225 Difference]: With dead ends: 4461 [2021-10-08 15:50:53,420 INFO L226 Difference]: Without dead ends: 4461 [2021-10-08 15:50:53,421 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 2997.7ms TimeCoverageRelationStatistics Valid=408, Invalid=2042, Unknown=0, NotChecked=0, Total=2450 [2021-10-08 15:50:53,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4461 states. [2021-10-08 15:50:53,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4461 to 3438. [2021-10-08 15:50:53,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3438 states, 3187 states have (on average 4.395669909005334) internal successors, (14009), 3437 states have internal predecessors, (14009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3438 states to 3438 states and 14009 transitions. [2021-10-08 15:50:53,523 INFO L78 Accepts]: Start accepts. Automaton has 3438 states and 14009 transitions. Word has length 27 [2021-10-08 15:50:53,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:53,523 INFO L470 AbstractCegarLoop]: Abstraction has 3438 states and 14009 transitions. [2021-10-08 15:50:53,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:50:53,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3438 states and 14009 transitions. [2021-10-08 15:50:53,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:50:53,524 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:53,525 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:53,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-10-08 15:50:53,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-10-08 15:50:53,738 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:50:53,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:53,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1653735449, now seen corresponding path program 1 times [2021-10-08 15:50:53,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:53,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136622487] [2021-10-08 15:50:53,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:53,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:54,386 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:50:54,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:54,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136622487] [2021-10-08 15:50:54,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136622487] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:50:54,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832754934] [2021-10-08 15:50:54,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:54,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:50:54,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:50:54,389 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:50:54,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-08 15:50:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:56,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-08 15:50:56,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:50:56,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:50:56,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:50:56,764 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-08 15:50:56,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 121 [2021-10-08 15:50:58,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:50:59,669 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:59,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:50:59,820 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:50:59,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:51:01,634 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:01,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:51:01,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:51:01,906 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-08 15:51:01,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 78 treesize of output 124 [2021-10-08 15:51:04,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:05,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:07,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:07,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:09,274 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:51:09,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 107 [2021-10-08 15:51:11,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:51:11,430 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-08 15:51:11,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 104 treesize of output 170 [2021-10-08 15:51:11,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:11,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:11,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:11,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:11,852 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:51:11,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-08 15:51:11,915 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:11,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:51:11,946 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:11,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:12,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-08 15:51:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:51:12,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832754934] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:51:12,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:51:12,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2021-10-08 15:51:12,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172844615] [2021-10-08 15:51:12,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-08 15:51:12,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:12,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-08 15:51:12,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2021-10-08 15:51:12,033 INFO L87 Difference]: Start difference. First operand 3438 states and 14009 transitions. Second operand has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:14,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:14,727 INFO L93 Difference]: Finished difference Result 4193 states and 15927 transitions. [2021-10-08 15:51:14,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-08 15:51:14,728 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:51:14,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:14,744 INFO L225 Difference]: With dead ends: 4193 [2021-10-08 15:51:14,744 INFO L226 Difference]: Without dead ends: 4193 [2021-10-08 15:51:14,745 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 2135.2ms TimeCoverageRelationStatistics Valid=384, Invalid=1596, Unknown=0, NotChecked=0, Total=1980 [2021-10-08 15:51:14,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4193 states. [2021-10-08 15:51:14,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4193 to 3438. [2021-10-08 15:51:14,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3438 states, 3187 states have (on average 4.3144022591779105) internal successors, (13750), 3437 states have internal predecessors, (13750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:14,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3438 states to 3438 states and 13750 transitions. [2021-10-08 15:51:14,857 INFO L78 Accepts]: Start accepts. Automaton has 3438 states and 13750 transitions. Word has length 27 [2021-10-08 15:51:14,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:14,858 INFO L470 AbstractCegarLoop]: Abstraction has 3438 states and 13750 transitions. [2021-10-08 15:51:14,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:14,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3438 states and 13750 transitions. [2021-10-08 15:51:14,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:51:14,859 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:14,859 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:14,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2021-10-08 15:51:15,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-10-08 15:51:15,068 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:51:15,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:15,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1583398983, now seen corresponding path program 1 times [2021-10-08 15:51:15,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:15,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128352251] [2021-10-08 15:51:15,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:15,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:15,120 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-10-08 15:51:15,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:15,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128352251] [2021-10-08 15:51:15,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128352251] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:15,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:15,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:51:15,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071113630] [2021-10-08 15:51:15,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:51:15,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:15,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:51:15,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:15,122 INFO L87 Difference]: Start difference. First operand 3438 states and 13750 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:15,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:15,164 INFO L93 Difference]: Finished difference Result 3098 states and 12394 transitions. [2021-10-08 15:51:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:51:15,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:51:15,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:15,183 INFO L225 Difference]: With dead ends: 3098 [2021-10-08 15:51:15,183 INFO L226 Difference]: Without dead ends: 3098 [2021-10-08 15:51:15,183 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:15,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2021-10-08 15:51:15,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 3098. [2021-10-08 15:51:15,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3098 states, 2889 states have (on average 4.2900657667012805) internal successors, (12394), 3097 states have internal predecessors, (12394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 12394 transitions. [2021-10-08 15:51:15,284 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 12394 transitions. Word has length 27 [2021-10-08 15:51:15,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:15,284 INFO L470 AbstractCegarLoop]: Abstraction has 3098 states and 12394 transitions. [2021-10-08 15:51:15,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:15,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 12394 transitions. [2021-10-08 15:51:15,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:51:15,285 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:15,286 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:15,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-10-08 15:51:15,286 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:51:15,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:15,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1583398967, now seen corresponding path program 1 times [2021-10-08 15:51:15,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:15,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816844872] [2021-10-08 15:51:15,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:15,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:16,565 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:16,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:16,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816844872] [2021-10-08 15:51:16,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816844872] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:51:16,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044291440] [2021-10-08 15:51:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:16,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:51:16,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:51:16,567 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:51:16,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-08 15:51:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:18,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-08 15:51:18,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:51:18,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:51:19,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:51:19,221 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:19,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:51:19,338 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:19,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:51:19,440 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:19,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:51:19,523 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:51:19,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:51:19,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:51:19,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:51:19,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:51:19,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:51:19,801 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:51:19,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:51:19,883 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:19,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:51:19,967 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:19,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:51:20,038 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:20,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:51:20,104 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:51:20,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044291440] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:51:20,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:51:20,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 14] total 35 [2021-10-08 15:51:20,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50936928] [2021-10-08 15:51:20,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-08 15:51:20,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:20,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-08 15:51:20,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 15:51:20,106 INFO L87 Difference]: Start difference. First operand 3098 states and 12394 transitions. Second operand has 37 states, 36 states have (on average 1.25) internal successors, (45), 36 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:22,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:22,713 INFO L93 Difference]: Finished difference Result 5126 states and 20150 transitions. [2021-10-08 15:51:22,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 15:51:22,714 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 1.25) internal successors, (45), 36 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:51:22,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:22,738 INFO L225 Difference]: With dead ends: 5126 [2021-10-08 15:51:22,738 INFO L226 Difference]: Without dead ends: 5126 [2021-10-08 15:51:22,739 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2633.5ms TimeCoverageRelationStatistics Valid=434, Invalid=2218, Unknown=0, NotChecked=0, Total=2652 [2021-10-08 15:51:22,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5126 states. [2021-10-08 15:51:22,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5126 to 3438. [2021-10-08 15:51:22,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3438 states, 3229 states have (on average 4.677609166924745) internal successors, (15104), 3437 states have internal predecessors, (15104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:22,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3438 states to 3438 states and 15104 transitions. [2021-10-08 15:51:22,822 INFO L78 Accepts]: Start accepts. Automaton has 3438 states and 15104 transitions. Word has length 27 [2021-10-08 15:51:22,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:22,822 INFO L470 AbstractCegarLoop]: Abstraction has 3438 states and 15104 transitions. [2021-10-08 15:51:22,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 1.25) internal successors, (45), 36 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:22,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3438 states and 15104 transitions. [2021-10-08 15:51:22,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:51:22,823 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:22,823 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:22,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-10-08 15:51:23,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,44 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:51:23,025 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:51:23,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:23,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1583398968, now seen corresponding path program 1 times [2021-10-08 15:51:23,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:23,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573623824] [2021-10-08 15:51:23,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:23,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:23,609 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:51:23,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:23,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573623824] [2021-10-08 15:51:23,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573623824] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:51:23,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618835229] [2021-10-08 15:51:23,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:23,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:51:23,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:51:23,612 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:51:23,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-08 15:51:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:26,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-08 15:51:26,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:51:26,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:51:26,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:51:26,262 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:26,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:51:26,340 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:26,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:51:26,418 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:26,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:51:26,487 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:51:26,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:51:26,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:26,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:26,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:26,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:51:26,662 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:51:26,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:51:26,728 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:26,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:51:26,795 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:26,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:51:26,859 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:26,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:51:26,915 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:51:26,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618835229] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:51:26,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:51:26,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-10-08 15:51:26,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874377435] [2021-10-08 15:51:26,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-08 15:51:26,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:26,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-08 15:51:26,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=592, Unknown=0, NotChecked=0, Total=702 [2021-10-08 15:51:26,917 INFO L87 Difference]: Start difference. First operand 3438 states and 15104 transitions. Second operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:28,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:28,155 INFO L93 Difference]: Finished difference Result 4786 states and 18794 transitions. [2021-10-08 15:51:28,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 15:51:28,156 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:51:28,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:28,174 INFO L225 Difference]: With dead ends: 4786 [2021-10-08 15:51:28,174 INFO L226 Difference]: Without dead ends: 4786 [2021-10-08 15:51:28,175 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1163.7ms TimeCoverageRelationStatistics Valid=330, Invalid=1230, Unknown=0, NotChecked=0, Total=1560 [2021-10-08 15:51:28,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4786 states. [2021-10-08 15:51:28,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4786 to 3438. [2021-10-08 15:51:28,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3438 states, 3229 states have (on average 4.572313409724373) internal successors, (14764), 3437 states have internal predecessors, (14764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:28,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3438 states to 3438 states and 14764 transitions. [2021-10-08 15:51:28,258 INFO L78 Accepts]: Start accepts. Automaton has 3438 states and 14764 transitions. Word has length 27 [2021-10-08 15:51:28,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:28,258 INFO L470 AbstractCegarLoop]: Abstraction has 3438 states and 14764 transitions. [2021-10-08 15:51:28,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:28,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3438 states and 14764 transitions. [2021-10-08 15:51:28,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:51:28,259 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:28,260 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:28,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-10-08 15:51:28,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,45 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:51:28,461 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:51:28,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:28,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1583398969, now seen corresponding path program 1 times [2021-10-08 15:51:28,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:28,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393116448] [2021-10-08 15:51:28,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:28,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:28,917 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:51:28,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:28,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393116448] [2021-10-08 15:51:28,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393116448] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:51:28,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055083763] [2021-10-08 15:51:28,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:28,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:51:28,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:51:28,920 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:51:28,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-08 15:51:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:31,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:51:31,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:51:31,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:51:31,623 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:31,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:51:31,693 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:31,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:51:31,766 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:31,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:51:31,829 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:31,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:51:31,895 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:31,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:51:31,953 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:31,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:51:32,011 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:51:32,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055083763] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:51:32,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:51:32,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-10-08 15:51:32,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750103134] [2021-10-08 15:51:32,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 15:51:32,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:32,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 15:51:32,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2021-10-08 15:51:32,013 INFO L87 Difference]: Start difference. First operand 3438 states and 14764 transitions. Second operand has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:33,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:33,131 INFO L93 Difference]: Finished difference Result 4446 states and 17438 transitions. [2021-10-08 15:51:33,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 15:51:33,132 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:51:33,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:33,150 INFO L225 Difference]: With dead ends: 4446 [2021-10-08 15:51:33,150 INFO L226 Difference]: Without dead ends: 4446 [2021-10-08 15:51:33,150 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 855.9ms TimeCoverageRelationStatistics Valid=220, Invalid=772, Unknown=0, NotChecked=0, Total=992 [2021-10-08 15:51:33,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2021-10-08 15:51:33,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 3438. [2021-10-08 15:51:33,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3438 states, 3229 states have (on average 4.467017652524001) internal successors, (14424), 3437 states have internal predecessors, (14424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3438 states to 3438 states and 14424 transitions. [2021-10-08 15:51:33,268 INFO L78 Accepts]: Start accepts. Automaton has 3438 states and 14424 transitions. Word has length 27 [2021-10-08 15:51:33,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:33,269 INFO L470 AbstractCegarLoop]: Abstraction has 3438 states and 14424 transitions. [2021-10-08 15:51:33,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:33,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3438 states and 14424 transitions. [2021-10-08 15:51:33,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:51:33,270 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:33,270 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:33,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-10-08 15:51:33,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,46 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:51:33,485 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:51:33,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:33,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1583398890, now seen corresponding path program 1 times [2021-10-08 15:51:33,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:33,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757819512] [2021-10-08 15:51:33,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:33,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:34,006 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:51:34,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:34,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757819512] [2021-10-08 15:51:34,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757819512] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:51:34,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925528032] [2021-10-08 15:51:34,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:34,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:51:34,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:51:34,008 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:51:34,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-08 15:51:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:36,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:51:36,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:51:36,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:51:36,638 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:36,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:51:36,708 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:36,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:51:36,778 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:36,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:51:36,839 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:36,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:51:36,905 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:36,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:51:36,963 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:51:36,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:51:37,015 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:51:37,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925528032] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:51:37,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:51:37,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-10-08 15:51:37,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244781824] [2021-10-08 15:51:37,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 15:51:37,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:37,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 15:51:37,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2021-10-08 15:51:37,017 INFO L87 Difference]: Start difference. First operand 3438 states and 14424 transitions. Second operand has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:38,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:38,081 INFO L93 Difference]: Finished difference Result 4106 states and 16082 transitions. [2021-10-08 15:51:38,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 15:51:38,082 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:51:38,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:38,094 INFO L225 Difference]: With dead ends: 4106 [2021-10-08 15:51:38,094 INFO L226 Difference]: Without dead ends: 4106 [2021-10-08 15:51:38,095 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 849.2ms TimeCoverageRelationStatistics Valid=220, Invalid=772, Unknown=0, NotChecked=0, Total=992 [2021-10-08 15:51:38,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4106 states. [2021-10-08 15:51:38,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4106 to 3438. [2021-10-08 15:51:38,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3438 states, 3229 states have (on average 4.36172189532363) internal successors, (14084), 3437 states have internal predecessors, (14084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:38,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3438 states to 3438 states and 14084 transitions. [2021-10-08 15:51:38,170 INFO L78 Accepts]: Start accepts. Automaton has 3438 states and 14084 transitions. Word has length 27 [2021-10-08 15:51:38,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:38,170 INFO L470 AbstractCegarLoop]: Abstraction has 3438 states and 14084 transitions. [2021-10-08 15:51:38,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3438 states and 14084 transitions. [2021-10-08 15:51:38,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:51:38,171 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:38,171 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:38,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-10-08 15:51:38,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,47 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:51:38,372 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:51:38,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:38,373 INFO L82 PathProgramCache]: Analyzing trace with hash 899946069, now seen corresponding path program 2 times [2021-10-08 15:51:38,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:38,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575243791] [2021-10-08 15:51:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:38,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:51:38,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:38,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575243791] [2021-10-08 15:51:38,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575243791] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:51:38,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950682366] [2021-10-08 15:51:38,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:51:38,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:51:38,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:51:38,992 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:51:38,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-08 15:51:41,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:51:41,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:51:41,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-08 15:51:41,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:51:41,568 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:51:41,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 108 [2021-10-08 15:51:43,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:51:44,611 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:44,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:51:45,377 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:45,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:51:46,383 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-08 15:51:46,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 82 treesize of output 128 [2021-10-08 15:51:48,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:51:49,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:51:51,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:51:52,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:51:53,339 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:51:53,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 118 [2021-10-08 15:51:56,314 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-08 15:51:56,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 108 treesize of output 174 [2021-10-08 15:51:56,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:51:56,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:51:56,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:51:56,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:51:56,634 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:51:56,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:51:56,698 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:51:56,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:51:56,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-08 15:51:56,904 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:51:56,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950682366] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:51:56,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:51:56,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2021-10-08 15:51:56,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494207397] [2021-10-08 15:51:56,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-08 15:51:56,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:56,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-08 15:51:56,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=819, Unknown=0, NotChecked=0, Total=930 [2021-10-08 15:51:56,907 INFO L87 Difference]: Start difference. First operand 3438 states and 14084 transitions. Second operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:00,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:52:00,880 INFO L93 Difference]: Finished difference Result 4232 states and 17661 transitions. [2021-10-08 15:52:00,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 15:52:00,880 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:52:00,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:52:00,895 INFO L225 Difference]: With dead ends: 4232 [2021-10-08 15:52:00,895 INFO L226 Difference]: Without dead ends: 4232 [2021-10-08 15:52:00,895 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 2624.4ms TimeCoverageRelationStatistics Valid=370, Invalid=1886, Unknown=0, NotChecked=0, Total=2256 [2021-10-08 15:52:00,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4232 states. [2021-10-08 15:52:00,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4232 to 3702. [2021-10-08 15:52:00,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3702 states, 3493 states have (on average 4.624391640423704) internal successors, (16153), 3701 states have internal predecessors, (16153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:01,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3702 states to 3702 states and 16153 transitions. [2021-10-08 15:52:01,008 INFO L78 Accepts]: Start accepts. Automaton has 3702 states and 16153 transitions. Word has length 27 [2021-10-08 15:52:01,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:52:01,009 INFO L470 AbstractCegarLoop]: Abstraction has 3702 states and 16153 transitions. [2021-10-08 15:52:01,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:01,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3702 states and 16153 transitions. [2021-10-08 15:52:01,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:52:01,010 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:52:01,010 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:52:01,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-10-08 15:52:01,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-10-08 15:52:01,211 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:52:01,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:52:01,214 INFO L82 PathProgramCache]: Analyzing trace with hash 899946071, now seen corresponding path program 2 times [2021-10-08 15:52:01,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:52:01,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696001148] [2021-10-08 15:52:01,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:01,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:52:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:52:01,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:52:01,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696001148] [2021-10-08 15:52:01,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696001148] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:52:01,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026629839] [2021-10-08 15:52:01,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:52:01,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:52:01,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:52:01,729 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:52:01,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-08 15:52:04,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:52:04,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:52:04,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-08 15:52:04,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:52:04,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:52:04,492 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-08 15:52:04,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-08 15:52:06,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:52:06,573 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:06,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:52:07,053 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:07,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:52:07,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:52:07,305 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-08 15:52:07,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 66 treesize of output 112 [2021-10-08 15:52:08,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:52:09,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:52:10,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:52:11,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:52:12,350 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:52:12,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 100 [2021-10-08 15:52:14,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:52:14,399 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-08 15:52:14,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 92 treesize of output 158 [2021-10-08 15:52:14,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:52:14,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:52:14,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:52:14,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:52:14,699 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:52:14,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:52:14,764 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:14,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:52:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:52:15,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026629839] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:52:15,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:52:15,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 30 [2021-10-08 15:52:15,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620388214] [2021-10-08 15:52:15,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-08 15:52:15,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:52:15,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-08 15:52:15,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=883, Unknown=0, NotChecked=0, Total=992 [2021-10-08 15:52:15,035 INFO L87 Difference]: Start difference. First operand 3702 states and 16153 transitions. Second operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:18,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:52:18,651 INFO L93 Difference]: Finished difference Result 4254 states and 17442 transitions. [2021-10-08 15:52:18,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-08 15:52:18,652 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:52:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:52:18,666 INFO L225 Difference]: With dead ends: 4254 [2021-10-08 15:52:18,667 INFO L226 Difference]: Without dead ends: 4254 [2021-10-08 15:52:18,667 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 3156.4ms TimeCoverageRelationStatistics Valid=453, Invalid=2517, Unknown=0, NotChecked=0, Total=2970 [2021-10-08 15:52:18,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4254 states. [2021-10-08 15:52:18,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4254 to 3455. [2021-10-08 15:52:18,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 3246 states have (on average 4.369069624152804) internal successors, (14182), 3454 states have internal predecessors, (14182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:18,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 14182 transitions. [2021-10-08 15:52:18,785 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 14182 transitions. Word has length 27 [2021-10-08 15:52:18,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:52:18,785 INFO L470 AbstractCegarLoop]: Abstraction has 3455 states and 14182 transitions. [2021-10-08 15:52:18,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:18,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 14182 transitions. [2021-10-08 15:52:18,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:52:18,786 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:52:18,786 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:52:18,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-10-08 15:52:18,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-10-08 15:52:18,995 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:52:18,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:52:18,996 INFO L82 PathProgramCache]: Analyzing trace with hash 899945992, now seen corresponding path program 2 times [2021-10-08 15:52:18,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:52:18,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936515082] [2021-10-08 15:52:18,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:18,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:52:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:52:19,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:52:19,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936515082] [2021-10-08 15:52:19,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936515082] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:52:19,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492282871] [2021-10-08 15:52:19,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:52:19,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:52:19,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:52:19,566 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:52:19,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-08 15:52:22,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:52:22,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:52:22,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:52:22,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:52:22,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:52:22,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:52:22,491 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:22,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:52:22,547 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:22,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:52:22,603 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:52:22,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:52:22,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:52:22,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:52:22,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:52:22,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:52:22,709 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:52:22,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:52:22,765 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:22,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:52:22,932 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:52:22,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492282871] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:52:22,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:52:22,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 31 [2021-10-08 15:52:22,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716656903] [2021-10-08 15:52:22,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-08 15:52:22,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:52:22,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-08 15:52:22,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=953, Unknown=0, NotChecked=0, Total=1056 [2021-10-08 15:52:22,935 INFO L87 Difference]: Start difference. First operand 3455 states and 14182 transitions. Second operand has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:25,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:52:25,161 INFO L93 Difference]: Finished difference Result 3983 states and 15687 transitions. [2021-10-08 15:52:25,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 15:52:25,162 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:52:25,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:52:25,175 INFO L225 Difference]: With dead ends: 3983 [2021-10-08 15:52:25,176 INFO L226 Difference]: Without dead ends: 3983 [2021-10-08 15:52:25,176 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 1871.0ms TimeCoverageRelationStatistics Valid=383, Invalid=2167, Unknown=0, NotChecked=0, Total=2550 [2021-10-08 15:52:25,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2021-10-08 15:52:25,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3455. [2021-10-08 15:52:25,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 3246 states have (on average 4.368761552680222) internal successors, (14181), 3454 states have internal predecessors, (14181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 14181 transitions. [2021-10-08 15:52:25,253 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 14181 transitions. Word has length 27 [2021-10-08 15:52:25,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:52:25,253 INFO L470 AbstractCegarLoop]: Abstraction has 3455 states and 14181 transitions. [2021-10-08 15:52:25,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:25,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 14181 transitions. [2021-10-08 15:52:25,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-08 15:52:25,254 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:52:25,254 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:52:25,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-10-08 15:52:25,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-10-08 15:52:25,456 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:52:25,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:52:25,457 INFO L82 PathProgramCache]: Analyzing trace with hash 899946072, now seen corresponding path program 2 times [2021-10-08 15:52:25,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:52:25,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16459061] [2021-10-08 15:52:25,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:25,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:52:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:52:26,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:52:26,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16459061] [2021-10-08 15:52:26,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16459061] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:52:26,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713544297] [2021-10-08 15:52:26,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:52:26,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:52:26,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:52:26,019 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:52:26,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-10-08 15:52:28,701 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:52:28,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:52:28,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:52:28,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:52:28,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:52:28,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:52:28,932 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:28,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:52:29,000 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:29,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:52:29,056 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:52:29,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:52:29,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:52:29,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:52:29,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:52:29,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:52:29,169 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:52:29,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:52:29,228 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:29,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:52:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:52:29,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713544297] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:52:29,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:52:29,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 31 [2021-10-08 15:52:29,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552554366] [2021-10-08 15:52:29,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-08 15:52:29,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:52:29,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-08 15:52:29,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=953, Unknown=0, NotChecked=0, Total=1056 [2021-10-08 15:52:29,399 INFO L87 Difference]: Start difference. First operand 3455 states and 14181 transitions. Second operand has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:31,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:52:31,556 INFO L93 Difference]: Finished difference Result 3982 states and 15685 transitions. [2021-10-08 15:52:31,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 15:52:31,557 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-08 15:52:31,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:52:31,570 INFO L225 Difference]: With dead ends: 3982 [2021-10-08 15:52:31,570 INFO L226 Difference]: Without dead ends: 3982 [2021-10-08 15:52:31,571 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 1928.3ms TimeCoverageRelationStatistics Valid=383, Invalid=2167, Unknown=0, NotChecked=0, Total=2550 [2021-10-08 15:52:31,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states. [2021-10-08 15:52:31,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3455. [2021-10-08 15:52:31,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 3246 states have (on average 4.3684534812076405) internal successors, (14180), 3454 states have internal predecessors, (14180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:31,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 14180 transitions. [2021-10-08 15:52:31,657 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 14180 transitions. Word has length 27 [2021-10-08 15:52:31,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:52:31,657 INFO L470 AbstractCegarLoop]: Abstraction has 3455 states and 14180 transitions. [2021-10-08 15:52:31,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:31,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 14180 transitions. [2021-10-08 15:52:31,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:52:31,658 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:52:31,658 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:52:31,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-10-08 15:52:31,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,51 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:52:31,860 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:52:31,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:52:31,860 INFO L82 PathProgramCache]: Analyzing trace with hash -273812420, now seen corresponding path program 1 times [2021-10-08 15:52:31,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:52:31,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777981135] [2021-10-08 15:52:31,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:31,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:52:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:32,380 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:52:32,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:52:32,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777981135] [2021-10-08 15:52:32,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777981135] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:52:32,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716160604] [2021-10-08 15:52:32,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:32,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:52:32,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:52:32,383 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:52:32,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-10-08 15:52:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:35,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:52:35,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:52:35,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:52:35,388 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:35,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:52:35,450 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:35,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:52:35,530 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:35,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:52:35,590 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:52:35,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:52:35,665 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:52:35,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:52:35,840 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:52:35,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:52:35,871 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:52:35,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716160604] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:52:35,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:52:35,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-10-08 15:52:35,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313599635] [2021-10-08 15:52:35,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 15:52:35,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:52:35,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 15:52:35,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-10-08 15:52:35,874 INFO L87 Difference]: Start difference. First operand 3455 states and 14180 transitions. Second operand has 25 states, 24 states have (on average 1.5) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:37,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:52:37,004 INFO L93 Difference]: Finished difference Result 5229 states and 20594 transitions. [2021-10-08 15:52:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 15:52:37,005 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.5) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:52:37,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:52:37,024 INFO L225 Difference]: With dead ends: 5229 [2021-10-08 15:52:37,024 INFO L226 Difference]: Without dead ends: 5229 [2021-10-08 15:52:37,024 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 953.8ms TimeCoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 15:52:37,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5229 states. [2021-10-08 15:52:37,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5229 to 3947. [2021-10-08 15:52:37,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3738 states have (on average 4.510968432316747) internal successors, (16862), 3946 states have internal predecessors, (16862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 16862 transitions. [2021-10-08 15:52:37,151 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 16862 transitions. Word has length 28 [2021-10-08 15:52:37,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:52:37,151 INFO L470 AbstractCegarLoop]: Abstraction has 3947 states and 16862 transitions. [2021-10-08 15:52:37,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.5) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:37,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 16862 transitions. [2021-10-08 15:52:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:52:37,153 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:52:37,153 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:52:37,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-10-08 15:52:37,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-10-08 15:52:37,369 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:52:37,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:52:37,369 INFO L82 PathProgramCache]: Analyzing trace with hash -273812323, now seen corresponding path program 1 times [2021-10-08 15:52:37,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:52:37,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770005097] [2021-10-08 15:52:37,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:37,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:52:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:37,821 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:52:37,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:52:37,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770005097] [2021-10-08 15:52:37,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770005097] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:52:37,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688361939] [2021-10-08 15:52:37,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:37,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:52:37,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:52:37,824 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:52:37,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-10-08 15:52:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:40,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:52:40,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:52:40,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:52:40,940 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:40,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:52:41,013 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:41,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:52:41,089 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:41,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:52:41,153 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:52:41,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:52:41,220 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:52:41,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:52:41,395 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:52:41,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:52:41,430 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:52:41,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688361939] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:52:41,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:52:41,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-10-08 15:52:41,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344122366] [2021-10-08 15:52:41,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 15:52:41,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:52:41,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 15:52:41,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2021-10-08 15:52:41,433 INFO L87 Difference]: Start difference. First operand 3947 states and 16862 transitions. Second operand has 25 states, 24 states have (on average 1.5) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:42,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:52:42,444 INFO L93 Difference]: Finished difference Result 4983 states and 19374 transitions. [2021-10-08 15:52:42,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 15:52:42,445 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.5) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:52:42,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:52:42,461 INFO L225 Difference]: With dead ends: 4983 [2021-10-08 15:52:42,461 INFO L226 Difference]: Without dead ends: 4983 [2021-10-08 15:52:42,461 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 932.6ms TimeCoverageRelationStatistics Valid=206, Invalid=850, Unknown=0, NotChecked=0, Total=1056 [2021-10-08 15:52:42,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4983 states. [2021-10-08 15:52:42,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4983 to 3947. [2021-10-08 15:52:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3738 states have (on average 4.379347244515784) internal successors, (16370), 3946 states have internal predecessors, (16370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:42,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 16370 transitions. [2021-10-08 15:52:42,579 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 16370 transitions. Word has length 28 [2021-10-08 15:52:42,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:52:42,579 INFO L470 AbstractCegarLoop]: Abstraction has 3947 states and 16370 transitions. [2021-10-08 15:52:42,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.5) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:52:42,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 16370 transitions. [2021-10-08 15:52:42,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:52:42,580 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:52:42,580 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:52:42,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-10-08 15:52:42,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,53 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:52:42,795 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:52:42,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:52:42,796 INFO L82 PathProgramCache]: Analyzing trace with hash -273646781, now seen corresponding path program 1 times [2021-10-08 15:52:42,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:52:42,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274082503] [2021-10-08 15:52:42,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:42,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:52:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:43,952 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:52:43,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:52:43,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274082503] [2021-10-08 15:52:43,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274082503] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:52:43,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961226562] [2021-10-08 15:52:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:43,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:52:43,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:52:43,956 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:52:43,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-08 15:52:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:46,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-08 15:52:46,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:52:46,889 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:52:46,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 216 [2021-10-08 15:52:47,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:52:48,363 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:48,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:52:48,922 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:48,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:52:49,549 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:52:49,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:52:50,287 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-08 15:52:50,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-08 15:52:52,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:52:52,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:52:53,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:52:55,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:52:55,136 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:52:55,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 96 [2021-10-08 15:52:57,198 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-08 15:52:57,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-08 15:52:57,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:52:57,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:52:57,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:52:57,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:52:57,609 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:52:57,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-08 15:52:57,676 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:52:57,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:52:57,716 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:52:57,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:52:57,809 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 15:52:57,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:52:57,910 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:52:57,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961226562] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:52:57,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:52:57,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 32 [2021-10-08 15:52:57,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830359707] [2021-10-08 15:52:57,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-08 15:52:57,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:52:57,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-08 15:52:57,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=978, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 15:52:57,911 INFO L87 Difference]: Start difference. First operand 3947 states and 16370 transitions. Second operand has 34 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:00,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:00,959 INFO L93 Difference]: Finished difference Result 4737 states and 18400 transitions. [2021-10-08 15:53:00,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 15:53:00,960 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:53:00,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:00,976 INFO L225 Difference]: With dead ends: 4737 [2021-10-08 15:53:00,976 INFO L226 Difference]: Without dead ends: 4737 [2021-10-08 15:53:00,976 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 3011.3ms TimeCoverageRelationStatistics Valid=438, Invalid=1914, Unknown=0, NotChecked=0, Total=2352 [2021-10-08 15:53:00,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4737 states. [2021-10-08 15:53:01,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4737 to 3947. [2021-10-08 15:53:01,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3738 states have (on average 4.313536650615302) internal successors, (16124), 3946 states have internal predecessors, (16124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:01,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 16124 transitions. [2021-10-08 15:53:01,140 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 16124 transitions. Word has length 28 [2021-10-08 15:53:01,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:01,141 INFO L470 AbstractCegarLoop]: Abstraction has 3947 states and 16124 transitions. [2021-10-08 15:53:01,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:01,141 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 16124 transitions. [2021-10-08 15:53:01,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:53:01,142 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:01,142 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:01,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-08 15:53:01,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-10-08 15:53:01,356 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:53:01,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:53:01,360 INFO L82 PathProgramCache]: Analyzing trace with hash -273646780, now seen corresponding path program 1 times [2021-10-08 15:53:01,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:53:01,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431637313] [2021-10-08 15:53:01,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:01,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:53:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:02,196 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:53:02,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:53:02,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431637313] [2021-10-08 15:53:02,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431637313] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:53:02,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399056314] [2021-10-08 15:53:02,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:02,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:53:02,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:53:02,199 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:53:02,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-10-08 15:53:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:04,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-08 15:53:04,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:53:05,079 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:53:05,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 137 [2021-10-08 15:53:06,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:53:06,788 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:53:06,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:53:07,457 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:53:07,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:53:07,588 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:53:07,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:53:08,141 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-08 15:53:08,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-08 15:53:10,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:11,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:11,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:12,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:12,783 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:53:12,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 98 [2021-10-08 15:53:15,136 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-08 15:53:15,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-08 15:53:15,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:15,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:15,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:15,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:15,732 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:53:15,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-08 15:53:15,769 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:53:15,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:15,819 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:53:15,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:15,953 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 15:53:15,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:53:16,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-08 15:53:16,003 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:53:16,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399056314] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:53:16,003 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:53:16,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 26 [2021-10-08 15:53:16,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647971365] [2021-10-08 15:53:16,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-08 15:53:16,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:53:16,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-08 15:53:16,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=639, Unknown=0, NotChecked=0, Total=756 [2021-10-08 15:53:16,005 INFO L87 Difference]: Start difference. First operand 3947 states and 16124 transitions. Second operand has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:18,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:18,203 INFO L93 Difference]: Finished difference Result 4491 states and 17426 transitions. [2021-10-08 15:53:18,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:53:18,203 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:53:18,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:18,218 INFO L225 Difference]: With dead ends: 4491 [2021-10-08 15:53:18,218 INFO L226 Difference]: Without dead ends: 4491 [2021-10-08 15:53:18,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 2049.5ms TimeCoverageRelationStatistics Valid=344, Invalid=1216, Unknown=0, NotChecked=0, Total=1560 [2021-10-08 15:53:18,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4491 states. [2021-10-08 15:53:18,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4491 to 3701. [2021-10-08 15:53:18,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3701 states, 3492 states have (on average 4.268041237113402) internal successors, (14904), 3700 states have internal predecessors, (14904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:18,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3701 states to 3701 states and 14904 transitions. [2021-10-08 15:53:18,312 INFO L78 Accepts]: Start accepts. Automaton has 3701 states and 14904 transitions. Word has length 28 [2021-10-08 15:53:18,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:18,312 INFO L470 AbstractCegarLoop]: Abstraction has 3701 states and 14904 transitions. [2021-10-08 15:53:18,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:18,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3701 states and 14904 transitions. [2021-10-08 15:53:18,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:53:18,313 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:18,314 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:18,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2021-10-08 15:53:18,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,55 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:53:18,527 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:53:18,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:53:18,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1336743653, now seen corresponding path program 1 times [2021-10-08 15:53:18,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:53:18,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621880965] [2021-10-08 15:53:18,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:18,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:53:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:19,531 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-08 15:53:19,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:53:19,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621880965] [2021-10-08 15:53:19,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621880965] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:53:19,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160470803] [2021-10-08 15:53:19,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:19,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:53:19,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:53:19,533 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:53:19,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-10-08 15:53:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:22,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-08 15:53:22,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:53:22,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:53:22,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:53:22,668 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-08 15:53:22,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 235 treesize of output 257 [2021-10-08 15:53:23,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:53:24,206 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:53:24,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:53:24,783 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:53:24,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:53:25,426 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:53:25,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:53:25,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:53:26,022 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-08 15:53:26,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-08 15:53:27,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:53:29,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:53:29,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:53:30,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:53:30,457 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:53:30,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 100 [2021-10-08 15:53:32,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:53:32,824 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-08 15:53:32,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-08 15:53:33,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:53:33,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:53:33,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:53:33,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:53:33,435 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:53:33,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-10-08 15:53:33,533 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:53:33,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:53:33,602 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:53:33,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:33,694 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:53:33,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:33,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-08 15:53:33,735 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:53:33,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160470803] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:53:33,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:53:33,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 28 [2021-10-08 15:53:33,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943612927] [2021-10-08 15:53:33,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-08 15:53:33,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:53:33,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-08 15:53:33,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2021-10-08 15:53:33,738 INFO L87 Difference]: Start difference. First operand 3701 states and 14904 transitions. Second operand has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:38,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:38,097 INFO L93 Difference]: Finished difference Result 12761 states and 50146 transitions. [2021-10-08 15:53:38,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-08 15:53:38,097 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:53:38,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:38,146 INFO L225 Difference]: With dead ends: 12761 [2021-10-08 15:53:38,146 INFO L226 Difference]: Without dead ends: 12761 [2021-10-08 15:53:38,147 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 3525.0ms TimeCoverageRelationStatistics Valid=426, Invalid=1926, Unknown=0, NotChecked=0, Total=2352 [2021-10-08 15:53:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12761 states. [2021-10-08 15:53:38,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12761 to 4499. [2021-10-08 15:53:38,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4499 states, 4290 states have (on average 4.557575757575758) internal successors, (19552), 4498 states have internal predecessors, (19552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:38,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 19552 transitions. [2021-10-08 15:53:38,384 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 19552 transitions. Word has length 28 [2021-10-08 15:53:38,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:38,384 INFO L470 AbstractCegarLoop]: Abstraction has 4499 states and 19552 transitions. [2021-10-08 15:53:38,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:38,385 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 19552 transitions. [2021-10-08 15:53:38,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:53:38,385 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:38,385 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:38,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2021-10-08 15:53:38,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,56 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:53:38,587 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:53:38,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:53:38,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1336743655, now seen corresponding path program 1 times [2021-10-08 15:53:38,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:53:38,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379776654] [2021-10-08 15:53:38,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:38,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:53:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-08 15:53:39,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:53:39,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379776654] [2021-10-08 15:53:39,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379776654] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:53:39,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402414589] [2021-10-08 15:53:39,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:39,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:53:39,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:53:39,511 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:53:39,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-10-08 15:53:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:42,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-08 15:53:42,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:53:42,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:53:42,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:53:42,739 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-08 15:53:42,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 100 [2021-10-08 15:53:43,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:53:44,371 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:53:44,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:53:45,388 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:53:45,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:53:45,537 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:53:45,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:53:45,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:53:46,099 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-08 15:53:46,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-08 15:53:48,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:48,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:49,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:50,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:50,194 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:53:50,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 98 [2021-10-08 15:53:52,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:53:52,159 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-08 15:53:52,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-08 15:53:52,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:52,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:52,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:52,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:53:52,616 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:53:52,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-08 15:53:52,705 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:53:52,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:53:52,762 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:53:52,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:53:52,821 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:53:52,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:53:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:53:52,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402414589] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:53:52,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:53:52,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 30 [2021-10-08 15:53:52,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429124960] [2021-10-08 15:53:52,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-08 15:53:52,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:53:52,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-08 15:53:52,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2021-10-08 15:53:52,929 INFO L87 Difference]: Start difference. First operand 4499 states and 19552 transitions. Second operand has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:59,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:59,609 INFO L93 Difference]: Finished difference Result 13323 states and 51210 transitions. [2021-10-08 15:53:59,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-08 15:53:59,610 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:53:59,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:59,664 INFO L225 Difference]: With dead ends: 13323 [2021-10-08 15:53:59,664 INFO L226 Difference]: Without dead ends: 13323 [2021-10-08 15:53:59,664 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 3707.5ms TimeCoverageRelationStatistics Valid=482, Invalid=2274, Unknown=0, NotChecked=0, Total=2756 [2021-10-08 15:53:59,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13323 states. [2021-10-08 15:53:59,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13323 to 4233. [2021-10-08 15:53:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4024 states have (on average 4.407554671968191) internal successors, (17736), 4232 states have internal predecessors, (17736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 17736 transitions. [2021-10-08 15:53:59,881 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 17736 transitions. Word has length 28 [2021-10-08 15:53:59,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:59,881 INFO L470 AbstractCegarLoop]: Abstraction has 4233 states and 17736 transitions. [2021-10-08 15:53:59,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:59,881 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 17736 transitions. [2021-10-08 15:53:59,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:53:59,882 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:59,882 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:59,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2021-10-08 15:54:00,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,57 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:54:00,084 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:54:00,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:00,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1336743576, now seen corresponding path program 1 times [2021-10-08 15:54:00,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:00,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694470846] [2021-10-08 15:54:00,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:00,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:01,087 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:54:01,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:01,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694470846] [2021-10-08 15:54:01,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694470846] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:54:01,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507775394] [2021-10-08 15:54:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:01,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:54:01,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:54:01,090 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:54:01,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-10-08 15:54:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:04,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-08 15:54:04,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:54:04,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:54:04,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:54:04,602 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:04,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:54:04,694 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:04,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:54:04,781 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:04,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:54:04,862 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:54:04,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:54:04,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:54:04,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:54:04,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:54:05,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 15:54:05,049 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-08 15:54:05,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:54:05,123 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:54:05,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:54:05,206 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:54:05,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:54:05,337 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 15:54:05,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 15:54:05,383 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:54:05,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507775394] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:54:05,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:54:05,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14] total 31 [2021-10-08 15:54:05,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198738889] [2021-10-08 15:54:05,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-08 15:54:05,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:05,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-08 15:54:05,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=922, Unknown=0, NotChecked=0, Total=1056 [2021-10-08 15:54:05,385 INFO L87 Difference]: Start difference. First operand 4233 states and 17736 transitions. Second operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:07,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:07,372 INFO L93 Difference]: Finished difference Result 5591 states and 21496 transitions. [2021-10-08 15:54:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:54:07,373 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:54:07,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:07,390 INFO L225 Difference]: With dead ends: 5591 [2021-10-08 15:54:07,391 INFO L226 Difference]: Without dead ends: 5591 [2021-10-08 15:54:07,391 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 2203.4ms TimeCoverageRelationStatistics Valid=383, Invalid=1779, Unknown=0, NotChecked=0, Total=2162 [2021-10-08 15:54:07,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5591 states. [2021-10-08 15:54:07,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5591 to 4233. [2021-10-08 15:54:07,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4024 states have (on average 4.3414512922465205) internal successors, (17470), 4232 states have internal predecessors, (17470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:07,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 17470 transitions. [2021-10-08 15:54:07,492 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 17470 transitions. Word has length 28 [2021-10-08 15:54:07,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:07,493 INFO L470 AbstractCegarLoop]: Abstraction has 4233 states and 17470 transitions. [2021-10-08 15:54:07,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:07,493 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 17470 transitions. [2021-10-08 15:54:07,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:54:07,494 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:07,494 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:07,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2021-10-08 15:54:07,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,58 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:54:07,698 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:54:07,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:07,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1336743656, now seen corresponding path program 1 times [2021-10-08 15:54:07,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:07,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528488560] [2021-10-08 15:54:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:07,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:08,712 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:54:08,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:08,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528488560] [2021-10-08 15:54:08,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528488560] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:54:08,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122590881] [2021-10-08 15:54:08,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:08,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:54:08,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:54:08,714 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:54:08,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-10-08 15:54:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:11,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-08 15:54:11,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:54:12,006 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:54:12,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-08 15:54:13,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:54:14,040 INFO L354 Elim1Store]: treesize reduction 276, result has 16.6 percent of original size [2021-10-08 15:54:14,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 66 treesize of output 108 [2021-10-08 15:54:16,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:54:17,079 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:17,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:54:17,728 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:17,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:54:18,347 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:18,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:54:18,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:54:18,635 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-08 15:54:18,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 80 treesize of output 146 [2021-10-08 15:54:18,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:54:18,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:54:18,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:54:18,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:54:19,012 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:54:19,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-10-08 15:54:19,094 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:19,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:54:19,177 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:19,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:54:19,328 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:19,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:54:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:54:19,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122590881] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:54:19,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:54:19,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14] total 32 [2021-10-08 15:54:19,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116962811] [2021-10-08 15:54:19,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-08 15:54:19,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:19,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-08 15:54:19,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=986, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 15:54:19,419 INFO L87 Difference]: Start difference. First operand 4233 states and 17470 transitions. Second operand has 34 states, 33 states have (on average 1.393939393939394) internal successors, (46), 33 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:25,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:25,166 INFO L93 Difference]: Finished difference Result 10644 states and 40950 transitions. [2021-10-08 15:54:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-08 15:54:25,167 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.393939393939394) internal successors, (46), 33 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:54:25,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:25,206 INFO L225 Difference]: With dead ends: 10644 [2021-10-08 15:54:25,206 INFO L226 Difference]: Without dead ends: 10644 [2021-10-08 15:54:25,206 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 5020.5ms TimeCoverageRelationStatistics Valid=667, Invalid=3115, Unknown=0, NotChecked=0, Total=3782 [2021-10-08 15:54:25,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10644 states. [2021-10-08 15:54:25,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10644 to 4233. [2021-10-08 15:54:25,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4024 states have (on average 4.275347912524851) internal successors, (17204), 4232 states have internal predecessors, (17204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:25,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 17204 transitions. [2021-10-08 15:54:25,382 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 17204 transitions. Word has length 28 [2021-10-08 15:54:25,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:25,382 INFO L470 AbstractCegarLoop]: Abstraction has 4233 states and 17204 transitions. [2021-10-08 15:54:25,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.393939393939394) internal successors, (46), 33 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:25,383 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 17204 transitions. [2021-10-08 15:54:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:54:25,384 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:25,384 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:25,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2021-10-08 15:54:25,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2021-10-08 15:54:25,599 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:54:25,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:25,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1840729900, now seen corresponding path program 2 times [2021-10-08 15:54:25,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:25,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052193432] [2021-10-08 15:54:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:25,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:27,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:27,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052193432] [2021-10-08 15:54:27,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052193432] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:54:27,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923655525] [2021-10-08 15:54:27,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:54:27,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:54:27,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:54:27,268 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:54:27,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-10-08 15:54:30,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:54:30,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:54:30,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-08 15:54:30,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:54:30,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:54:30,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:54:31,018 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:31,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:54:31,109 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:31,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:54:31,193 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:54:31,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:54:31,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:54:31,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:54:31,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:54:31,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:54:31,384 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:54:31,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:54:31,465 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:31,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:54:31,559 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:31,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:54:31,634 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:31,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:54:31,864 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:54:31,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923655525] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:54:31,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:54:31,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 15] total 39 [2021-10-08 15:54:31,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120655516] [2021-10-08 15:54:31,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-08 15:54:31,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:31,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-08 15:54:31,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1481, Unknown=0, NotChecked=0, Total=1640 [2021-10-08 15:54:31,866 INFO L87 Difference]: Start difference. First operand 4233 states and 17204 transitions. Second operand has 41 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:35,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:35,669 INFO L93 Difference]: Finished difference Result 7169 states and 27905 transitions. [2021-10-08 15:54:35,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 15:54:35,670 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:54:35,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:35,697 INFO L225 Difference]: With dead ends: 7169 [2021-10-08 15:54:35,698 INFO L226 Difference]: Without dead ends: 7169 [2021-10-08 15:54:35,698 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 3548.0ms TimeCoverageRelationStatistics Valid=472, Invalid=2720, Unknown=0, NotChecked=0, Total=3192 [2021-10-08 15:54:35,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2021-10-08 15:54:35,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 4655. [2021-10-08 15:54:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4655 states, 4446 states have (on average 4.621232568600989) internal successors, (20546), 4654 states have internal predecessors, (20546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:35,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4655 states to 4655 states and 20546 transitions. [2021-10-08 15:54:35,829 INFO L78 Accepts]: Start accepts. Automaton has 4655 states and 20546 transitions. Word has length 28 [2021-10-08 15:54:35,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:35,829 INFO L470 AbstractCegarLoop]: Abstraction has 4655 states and 20546 transitions. [2021-10-08 15:54:35,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:35,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4655 states and 20546 transitions. [2021-10-08 15:54:35,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:54:35,831 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:35,831 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:35,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2021-10-08 15:54:36,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,60 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:54:36,044 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:54:36,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:36,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1840729901, now seen corresponding path program 2 times [2021-10-08 15:54:36,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:36,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751110896] [2021-10-08 15:54:36,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:36,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:37,029 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:54:37,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:37,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751110896] [2021-10-08 15:54:37,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751110896] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:54:37,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40795481] [2021-10-08 15:54:37,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:54:37,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:54:37,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:54:37,032 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:54:37,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-10-08 15:54:40,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:54:40,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:54:40,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-08 15:54:40,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:54:40,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:54:40,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:54:40,662 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:40,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:54:40,747 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:40,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:54:40,833 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:54:40,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:54:40,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:54:40,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:54:40,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:54:40,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:54:41,020 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:54:41,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:54:41,105 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:41,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:54:41,195 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:41,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:54:41,271 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:41,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:54:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:54:41,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40795481] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:54:41,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:54:41,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15] total 35 [2021-10-08 15:54:41,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968474067] [2021-10-08 15:54:41,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-08 15:54:41,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:41,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-08 15:54:41,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1202, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 15:54:41,481 INFO L87 Difference]: Start difference. First operand 4655 states and 20546 transitions. Second operand has 37 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:44,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:44,909 INFO L93 Difference]: Finished difference Result 6747 states and 26245 transitions. [2021-10-08 15:54:44,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 15:54:44,909 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:54:44,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:44,935 INFO L225 Difference]: With dead ends: 6747 [2021-10-08 15:54:44,936 INFO L226 Difference]: Without dead ends: 6747 [2021-10-08 15:54:44,936 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 2988.4ms TimeCoverageRelationStatistics Valid=419, Invalid=2337, Unknown=0, NotChecked=0, Total=2756 [2021-10-08 15:54:44,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6747 states. [2021-10-08 15:54:45,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6747 to 4655. [2021-10-08 15:54:45,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4655 states, 4446 states have (on average 4.526315789473684) internal successors, (20124), 4654 states have internal predecessors, (20124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4655 states to 4655 states and 20124 transitions. [2021-10-08 15:54:45,064 INFO L78 Accepts]: Start accepts. Automaton has 4655 states and 20124 transitions. Word has length 28 [2021-10-08 15:54:45,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:45,064 INFO L470 AbstractCegarLoop]: Abstraction has 4655 states and 20124 transitions. [2021-10-08 15:54:45,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:45,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4655 states and 20124 transitions. [2021-10-08 15:54:45,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:54:45,065 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:45,065 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:45,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2021-10-08 15:54:45,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-10-08 15:54:45,266 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:54:45,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:45,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1840729902, now seen corresponding path program 2 times [2021-10-08 15:54:45,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:45,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932868991] [2021-10-08 15:54:45,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:45,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:46,641 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:54:46,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:46,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932868991] [2021-10-08 15:54:46,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932868991] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:54:46,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074207207] [2021-10-08 15:54:46,643 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:54:46,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:54:46,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:54:46,644 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:54:46,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-10-08 15:54:50,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:54:50,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:54:50,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:54:50,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:54:50,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:54:50,527 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:50,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:54:50,606 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:50,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:54:50,687 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:50,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:54:50,766 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:50,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:54:50,835 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:50,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:54:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:54:51,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074207207] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:54:51,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:54:51,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13] total 36 [2021-10-08 15:54:51,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915684372] [2021-10-08 15:54:51,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-08 15:54:51,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:51,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-08 15:54:51,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1243, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 15:54:51,025 INFO L87 Difference]: Start difference. First operand 4655 states and 20124 transitions. Second operand has 38 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 37 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:53,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:53,599 INFO L93 Difference]: Finished difference Result 6325 states and 24585 transitions. [2021-10-08 15:54:53,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 15:54:53,599 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 37 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:54:53,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:53,620 INFO L225 Difference]: With dead ends: 6325 [2021-10-08 15:54:53,620 INFO L226 Difference]: Without dead ends: 6325 [2021-10-08 15:54:53,620 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2199.7ms TimeCoverageRelationStatistics Valid=340, Invalid=2012, Unknown=0, NotChecked=0, Total=2352 [2021-10-08 15:54:53,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6325 states. [2021-10-08 15:54:53,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6325 to 4655. [2021-10-08 15:54:53,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4655 states, 4446 states have (on average 4.431399010346379) internal successors, (19702), 4654 states have internal predecessors, (19702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:53,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4655 states to 4655 states and 19702 transitions. [2021-10-08 15:54:53,730 INFO L78 Accepts]: Start accepts. Automaton has 4655 states and 19702 transitions. Word has length 28 [2021-10-08 15:54:53,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:53,731 INFO L470 AbstractCegarLoop]: Abstraction has 4655 states and 19702 transitions. [2021-10-08 15:54:53,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 37 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:53,731 INFO L276 IsEmpty]: Start isEmpty. Operand 4655 states and 19702 transitions. [2021-10-08 15:54:53,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:54:53,732 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:53,732 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:53,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-10-08 15:54:53,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-10-08 15:54:53,933 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:54:53,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:53,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1840729823, now seen corresponding path program 2 times [2021-10-08 15:54:53,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:53,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969758460] [2021-10-08 15:54:53,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:53,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:54,950 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-08 15:54:54,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:54,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969758460] [2021-10-08 15:54:54,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969758460] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:54:54,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895549797] [2021-10-08 15:54:54,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:54:54,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:54:54,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:54:54,954 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:54:54,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-10-08 15:54:58,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:54:58,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:54:58,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 15:54:58,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:54:58,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:54:58,744 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:58,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:54:58,817 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:58,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:54:58,887 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:58,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:54:58,959 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:58,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:54:59,023 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:54:59,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:54:59,195 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:54:59,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895549797] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:54:59,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:54:59,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13] total 31 [2021-10-08 15:54:59,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370811853] [2021-10-08 15:54:59,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-08 15:54:59,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:59,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-08 15:54:59,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=944, Unknown=0, NotChecked=0, Total=1056 [2021-10-08 15:54:59,197 INFO L87 Difference]: Start difference. First operand 4655 states and 19702 transitions. Second operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:01,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:01,703 INFO L93 Difference]: Finished difference Result 5903 states and 22925 transitions. [2021-10-08 15:55:01,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 15:55:01,704 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:55:01,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:01,727 INFO L225 Difference]: With dead ends: 5903 [2021-10-08 15:55:01,728 INFO L226 Difference]: Without dead ends: 5903 [2021-10-08 15:55:01,728 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1867.1ms TimeCoverageRelationStatistics Valid=281, Invalid=1611, Unknown=0, NotChecked=0, Total=1892 [2021-10-08 15:55:01,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2021-10-08 15:55:01,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 4655. [2021-10-08 15:55:01,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4655 states, 4446 states have (on average 4.336482231219073) internal successors, (19280), 4654 states have internal predecessors, (19280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:01,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4655 states to 4655 states and 19280 transitions. [2021-10-08 15:55:01,950 INFO L78 Accepts]: Start accepts. Automaton has 4655 states and 19280 transitions. Word has length 28 [2021-10-08 15:55:01,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:01,950 INFO L470 AbstractCegarLoop]: Abstraction has 4655 states and 19280 transitions. [2021-10-08 15:55:01,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:01,951 INFO L276 IsEmpty]: Start isEmpty. Operand 4655 states and 19280 transitions. [2021-10-08 15:55:01,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:55:01,951 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:01,951 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:55:01,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-10-08 15:55:02,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-10-08 15:55:02,154 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:55:02,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:02,155 INFO L82 PathProgramCache]: Analyzing trace with hash -2001285949, now seen corresponding path program 2 times [2021-10-08 15:55:02,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:02,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002542048] [2021-10-08 15:55:02,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:02,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:03,038 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:55:03,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:03,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002542048] [2021-10-08 15:55:03,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002542048] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:55:03,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656176448] [2021-10-08 15:55:03,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:55:03,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:55:03,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:55:03,041 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:55:03,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-10-08 15:55:06,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:55:06,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:55:06,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-08 15:55:06,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:55:06,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:55:06,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:55:06,673 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-08 15:55:06,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-08 15:55:08,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:55:08,183 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:55:08,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:55:08,652 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:55:08,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:55:09,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:55:09,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:55:09,349 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-08 15:55:09,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 66 treesize of output 112 [2021-10-08 15:55:10,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:55:11,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:55:12,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:55:13,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:55:13,858 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:55:13,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 97 [2021-10-08 15:55:15,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:55:15,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:55:15,707 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-08 15:55:15,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 92 treesize of output 158 [2021-10-08 15:55:15,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:55:15,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:55:16,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:55:16,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:55:16,079 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:55:16,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-08 15:55:16,153 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:55:16,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:55:16,230 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:55:16,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:55:16,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-08 15:55:16,456 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:55:16,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656176448] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:55:16,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:55:16,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2021-10-08 15:55:16,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745236695] [2021-10-08 15:55:16,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-08 15:55:16,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:16,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-08 15:55:16,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2021-10-08 15:55:16,458 INFO L87 Difference]: Start difference. First operand 4655 states and 19280 transitions. Second operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:21,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:21,471 INFO L93 Difference]: Finished difference Result 6011 states and 24721 transitions. [2021-10-08 15:55:21,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-08 15:55:21,472 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:55:21,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:21,494 INFO L225 Difference]: With dead ends: 6011 [2021-10-08 15:55:21,494 INFO L226 Difference]: Without dead ends: 6011 [2021-10-08 15:55:21,495 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 3831.6ms TimeCoverageRelationStatistics Valid=498, Invalid=2582, Unknown=0, NotChecked=0, Total=3080 [2021-10-08 15:55:21,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2021-10-08 15:55:21,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 4979. [2021-10-08 15:55:21,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4979 states, 4770 states have (on average 4.557861635220126) internal successors, (21741), 4978 states have internal predecessors, (21741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:21,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4979 states to 4979 states and 21741 transitions. [2021-10-08 15:55:21,626 INFO L78 Accepts]: Start accepts. Automaton has 4979 states and 21741 transitions. Word has length 28 [2021-10-08 15:55:21,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:21,626 INFO L470 AbstractCegarLoop]: Abstraction has 4979 states and 21741 transitions. [2021-10-08 15:55:21,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:21,626 INFO L276 IsEmpty]: Start isEmpty. Operand 4979 states and 21741 transitions. [2021-10-08 15:55:21,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:55:21,627 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:21,627 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:55:21,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-10-08 15:55:21,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,64 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:55:21,828 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:55:21,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:21,829 INFO L82 PathProgramCache]: Analyzing trace with hash -2001285947, now seen corresponding path program 2 times [2021-10-08 15:55:21,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:21,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492334496] [2021-10-08 15:55:21,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:21,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:22,619 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-08 15:55:22,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:22,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492334496] [2021-10-08 15:55:22,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492334496] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:55:22,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397245577] [2021-10-08 15:55:22,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:55:22,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:55:22,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:55:22,622 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:55:22,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-10-08 15:55:26,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:55:26,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:55:26,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-08 15:55:26,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:55:26,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:55:26,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:55:26,320 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-08 15:55:26,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-08 15:55:27,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:55:28,233 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:55:28,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:55:28,419 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:55:28,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:55:28,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:55:28,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:55:28,980 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-08 15:55:28,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 66 treesize of output 112 [2021-10-08 15:55:30,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:55:31,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:55:32,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:55:33,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:55:33,649 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:55:33,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 95 [2021-10-08 15:55:35,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:55:35,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 15:55:35,274 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-08 15:55:35,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 92 treesize of output 158 [2021-10-08 15:55:35,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:55:35,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:55:35,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:55:35,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:55:35,726 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:55:35,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-08 15:55:35,807 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:55:35,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:55:35,887 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:55:35,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:55:36,175 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-08 15:55:36,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397245577] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:55:36,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:55:36,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 33 [2021-10-08 15:55:36,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509398277] [2021-10-08 15:55:36,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-08 15:55:36,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:36,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-08 15:55:36,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1057, Unknown=0, NotChecked=0, Total=1190 [2021-10-08 15:55:36,178 INFO L87 Difference]: Start difference. First operand 4979 states and 21741 transitions. Second operand has 35 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:01,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:01,323 INFO L93 Difference]: Finished difference Result 6041 states and 24459 transitions. [2021-10-08 15:56:01,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-08 15:56:01,324 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:56:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:01,343 INFO L225 Difference]: With dead ends: 6041 [2021-10-08 15:56:01,343 INFO L226 Difference]: Without dead ends: 6041 [2021-10-08 15:56:01,344 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 4222.4ms TimeCoverageRelationStatistics Valid=560, Invalid=2980, Unknown=0, NotChecked=0, Total=3540 [2021-10-08 15:56:01,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6041 states. [2021-10-08 15:56:01,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6041 to 4670. [2021-10-08 15:56:01,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4670 states, 4461 states have (on average 4.332212508406187) internal successors, (19326), 4669 states have internal predecessors, (19326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:01,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4670 states to 4670 states and 19326 transitions. [2021-10-08 15:56:01,452 INFO L78 Accepts]: Start accepts. Automaton has 4670 states and 19326 transitions. Word has length 28 [2021-10-08 15:56:01,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:01,453 INFO L470 AbstractCegarLoop]: Abstraction has 4670 states and 19326 transitions. [2021-10-08 15:56:01,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:01,453 INFO L276 IsEmpty]: Start isEmpty. Operand 4670 states and 19326 transitions. [2021-10-08 15:56:01,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:56:01,454 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:01,454 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:56:01,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2021-10-08 15:56:01,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2021-10-08 15:56:01,668 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:56:01,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:01,669 INFO L82 PathProgramCache]: Analyzing trace with hash -2001286026, now seen corresponding path program 2 times [2021-10-08 15:56:01,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:01,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024551992] [2021-10-08 15:56:01,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:01,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:56:02,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:02,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024551992] [2021-10-08 15:56:02,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024551992] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:56:02,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885358535] [2021-10-08 15:56:02,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:56:02,445 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:56:02,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:56:02,446 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:56:02,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-10-08 15:56:05,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:56:05,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:56:05,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-08 15:56:05,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:56:05,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:56:06,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:56:06,168 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:56:06,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:56:06,344 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:56:06,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:56:06,411 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:56:06,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:56:06,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:56:06,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:56:06,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:56:06,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 15:56:06,556 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:56:06,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 15:56:06,622 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:56:06,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:56:06,686 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:56:06,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:56:06,874 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:56:06,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885358535] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:56:06,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:56:06,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14] total 33 [2021-10-08 15:56:06,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626143798] [2021-10-08 15:56:06,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-08 15:56:06,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:06,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-08 15:56:06,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1073, Unknown=0, NotChecked=0, Total=1190 [2021-10-08 15:56:06,877 INFO L87 Difference]: Start difference. First operand 4670 states and 19326 transitions. Second operand has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:09,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:09,921 INFO L93 Difference]: Finished difference Result 5321 states and 21146 transitions. [2021-10-08 15:56:09,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 15:56:09,922 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:56:09,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:09,940 INFO L225 Difference]: With dead ends: 5321 [2021-10-08 15:56:09,940 INFO L226 Difference]: Without dead ends: 5321 [2021-10-08 15:56:09,940 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2332.7ms TimeCoverageRelationStatistics Valid=393, Invalid=2259, Unknown=0, NotChecked=0, Total=2652 [2021-10-08 15:56:09,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5321 states. [2021-10-08 15:56:10,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5321 to 4670. [2021-10-08 15:56:10,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4670 states, 4461 states have (on average 4.3288500336247475) internal successors, (19311), 4669 states have internal predecessors, (19311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4670 states to 4670 states and 19311 transitions. [2021-10-08 15:56:10,042 INFO L78 Accepts]: Start accepts. Automaton has 4670 states and 19311 transitions. Word has length 28 [2021-10-08 15:56:10,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:10,043 INFO L470 AbstractCegarLoop]: Abstraction has 4670 states and 19311 transitions. [2021-10-08 15:56:10,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand 4670 states and 19311 transitions. [2021-10-08 15:56:10,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-08 15:56:10,043 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:10,044 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:56:10,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-10-08 15:56:10,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,66 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:56:10,245 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:56:10,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:10,245 INFO L82 PathProgramCache]: Analyzing trace with hash -2001285946, now seen corresponding path program 2 times [2021-10-08 15:56:10,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:10,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010396130] [2021-10-08 15:56:10,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:10,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:56:10,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:10,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010396130] [2021-10-08 15:56:10,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010396130] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:56:10,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278916268] [2021-10-08 15:56:10,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:56:10,984 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:56:10,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:56:10,985 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:56:10,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-10-08 15:56:14,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:56:14,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:56:14,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-08 15:56:14,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:56:14,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 15:56:14,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 15:56:14,877 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:56:14,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-08 15:56:14,957 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:56:14,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 15:56:15,029 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 15:56:15,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 15:56:15,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:56:15,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:56:15,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:56:15,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 15:56:15,181 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-08 15:56:15,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 15:56:15,252 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:56:15,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:56:15,318 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:56:15,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:56:15,518 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-08 15:56:15,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278916268] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:56:15,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:56:15,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14] total 33 [2021-10-08 15:56:15,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025242909] [2021-10-08 15:56:15,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-08 15:56:15,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:15,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-08 15:56:15,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1076, Unknown=0, NotChecked=0, Total=1190 [2021-10-08 15:56:15,520 INFO L87 Difference]: Start difference. First operand 4670 states and 19311 transitions. Second operand has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:18,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:18,958 INFO L93 Difference]: Finished difference Result 5306 states and 21100 transitions. [2021-10-08 15:56:18,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 15:56:18,959 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-08 15:56:18,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:18,979 INFO L225 Difference]: With dead ends: 5306 [2021-10-08 15:56:18,980 INFO L226 Difference]: Without dead ends: 5306 [2021-10-08 15:56:18,980 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 2595.8ms TimeCoverageRelationStatistics Valid=414, Invalid=2342, Unknown=0, NotChecked=0, Total=2756 [2021-10-08 15:56:18,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5306 states. [2021-10-08 15:56:19,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5306 to 4670. [2021-10-08 15:56:19,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4670 states, 4461 states have (on average 4.325487558843308) internal successors, (19296), 4669 states have internal predecessors, (19296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4670 states to 4670 states and 19296 transitions. [2021-10-08 15:56:19,100 INFO L78 Accepts]: Start accepts. Automaton has 4670 states and 19296 transitions. Word has length 28 [2021-10-08 15:56:19,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:19,100 INFO L470 AbstractCegarLoop]: Abstraction has 4670 states and 19296 transitions. [2021-10-08 15:56:19,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:19,100 INFO L276 IsEmpty]: Start isEmpty. Operand 4670 states and 19296 transitions. [2021-10-08 15:56:19,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-08 15:56:19,101 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:19,101 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:56:19,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2021-10-08 15:56:19,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,67 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:56:19,302 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:56:19,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:19,303 INFO L82 PathProgramCache]: Analyzing trace with hash 101935567, now seen corresponding path program 2 times [2021-10-08 15:56:19,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:19,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218178619] [2021-10-08 15:56:19,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:19,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-08 15:56:20,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:20,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218178619] [2021-10-08 15:56:20,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218178619] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:56:20,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731549674] [2021-10-08 15:56:20,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:56:20,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:56:20,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:56:20,249 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:56:20,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-10-08 15:56:24,048 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:56:24,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:56:24,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 15:56:24,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:56:24,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 15:56:24,339 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:56:24,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 15:56:24,412 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:56:24,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 15:56:24,468 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:56:24,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:56:24,526 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 15:56:24,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 15:56:24,709 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-08 15:56:24,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731549674] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:56:24,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:56:24,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12] total 29 [2021-10-08 15:56:24,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799651721] [2021-10-08 15:56:24,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-08 15:56:24,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:24,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-08 15:56:24,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=816, Unknown=0, NotChecked=0, Total=930 [2021-10-08 15:56:24,711 INFO L87 Difference]: Start difference. First operand 4670 states and 19296 transitions. Second operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:26,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:26,767 INFO L93 Difference]: Finished difference Result 5418 states and 21576 transitions. [2021-10-08 15:56:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 15:56:26,768 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-08 15:56:26,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:26,786 INFO L225 Difference]: With dead ends: 5418 [2021-10-08 15:56:26,786 INFO L226 Difference]: Without dead ends: 5418 [2021-10-08 15:56:26,786 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1668.3ms TimeCoverageRelationStatistics Valid=266, Invalid=1540, Unknown=0, NotChecked=0, Total=1806 [2021-10-08 15:56:26,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5418 states. [2021-10-08 15:56:26,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5418 to 4700. [2021-10-08 15:56:26,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 4491 states have (on average 4.331329325317301) internal successors, (19452), 4699 states have internal predecessors, (19452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:26,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 19452 transitions. [2021-10-08 15:56:26,894 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 19452 transitions. Word has length 29 [2021-10-08 15:56:26,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:26,895 INFO L470 AbstractCegarLoop]: Abstraction has 4700 states and 19452 transitions. [2021-10-08 15:56:26,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:26,895 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 19452 transitions. [2021-10-08 15:56:26,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-08 15:56:26,896 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:26,896 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:56:26,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2021-10-08 15:56:27,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2021-10-08 15:56:27,108 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-08 15:56:27,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:27,109 INFO L82 PathProgramCache]: Analyzing trace with hash 101935664, now seen corresponding path program 2 times [2021-10-08 15:56:27,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:27,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794556247] [2021-10-08 15:56:27,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:27,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-08 15:56:27,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:27,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794556247] [2021-10-08 15:56:27,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794556247] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:56:27,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036490939] [2021-10-08 15:56:27,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:56:27,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:56:27,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:56:27,764 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:56:27,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-10-08 15:56:31,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 15:56:31,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:56:31,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-08 15:56:31,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:56:31,701 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 15:56:31,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 28 treesize of output 58 [2021-10-08 15:56:35,160 INFO L354 Elim1Store]: treesize reduction 294, result has 17.9 percent of original size [2021-10-08 15:56:35,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 69 treesize of output 115 Received shutdown request... [2021-10-08 15:56:44,484 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-08 15:56:44,484 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-08 15:56:44,487 WARN L223 SmtUtils]: Removed 1 from assertion stack [2021-10-08 15:56:44,489 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-10-08 15:56:44,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,69 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:56:44,712 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. [2021-10-08 15:56:44,715 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,715 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,715 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,715 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,715 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,716 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,716 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,716 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,716 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,716 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,716 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,716 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,717 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,718 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,718 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,718 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,718 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,718 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,718 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,718 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,718 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,719 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,719 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,719 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,719 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,719 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,719 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,719 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,720 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,720 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,720 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 15:56:44,720 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 15:56:44,720 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-08 15:56:44,720 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,720 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,721 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,721 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,721 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,721 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,721 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,721 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,721 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,721 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,722 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,722 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,722 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,722 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,722 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,722 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,722 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,723 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,723 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,723 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,723 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,723 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,723 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:56:44,747 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 15:56:44,747 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 15:56:44,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 03:56:44 BasicIcfg [2021-10-08 15:56:44,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 15:56:44,750 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.witnessprinter [2021-10-08 15:56:44,751 INFO L168 Benchmark]: Toolchain (without parser) took 720261.90 ms. Allocated memory was 173.0 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 147.4 MB in the beginning and 1.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 889.9 MB. Max. memory is 8.0 GB. [2021-10-08 15:56:44,751 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 173.0 MB. Free memory is still 146.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 15:56:44,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.84 ms. Allocated memory is still 173.0 MB. Free memory was 146.8 MB in the beginning and 135.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-08 15:56:44,755 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.86 ms. Allocated memory is still 173.0 MB. Free memory was 135.4 MB in the beginning and 132.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-08 15:56:44,756 INFO L168 Benchmark]: Boogie Preprocessor took 53.86 ms. Allocated memory is still 173.0 MB. Free memory was 132.6 MB in the beginning and 130.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 15:56:44,756 INFO L168 Benchmark]: RCFGBuilder took 1021.00 ms. Allocated memory is still 173.0 MB. Free memory was 130.4 MB in the beginning and 105.9 MB in the end (delta: 24.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-10-08 15:56:44,756 INFO L168 Benchmark]: TraceAbstraction took 718724.45 ms. Allocated memory was 173.0 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 105.4 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 847.9 MB. Max. memory is 8.0 GB. [2021-10-08 15:56:44,756 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 173.0 MB. Free memory is still 146.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 362.84 ms. Allocated memory is still 173.0 MB. Free memory was 146.8 MB in the beginning and 135.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 72.86 ms. Allocated memory is still 173.0 MB. Free memory was 135.4 MB in the beginning and 132.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.86 ms. Allocated memory is still 173.0 MB. Free memory was 132.6 MB in the beginning and 130.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1021.00 ms. Allocated memory is still 173.0 MB. Free memory was 130.4 MB in the beginning and 105.9 MB in the end (delta: 24.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 718724.45 ms. Allocated memory was 173.0 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 105.4 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 847.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29973.0ms, 390 PlacesBefore, 67 PlacesAfterwards, 418 TransitionsBefore, 63 TransitionsAfterwards, 40128 CoEnabledTransitionPairs, 8 FixpointIterations, 151 TrivialSequentialCompositions, 259 ConcurrentSequentialCompositions, 37 TrivialYvCompositions, 53 ConcurrentYvCompositions, 32 ChoiceCompositions, 532 TotalNumberOfCompositions, 42209 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37812, positive: 37649, positive conditional: 0, positive unconditional: 37649, negative: 163, negative conditional: 0, negative unconditional: 163, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28032, positive: 27987, positive conditional: 0, positive unconditional: 27987, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28032, positive: 27987, positive conditional: 0, positive unconditional: 27987, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 215, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 215, negative conditional: 0, negative unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37812, positive: 9662, positive conditional: 0, positive unconditional: 9662, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 28032, unknown conditional: 0, unknown unconditional: 28032] , Statistics on independence cache: Total cache size (in pairs): 457, Positive cache size: 440, Positive conditional cache size: 0, Positive unconditional cache size: 440, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 30 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 53ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 591 locations, 57 error locations. Started 1 CEGAR loops. OverallTime: 718355.8ms, OverallIterations: 75, TraceHistogramMax: 5, EmptinessCheckTime: 84.9ms, AutomataDifference: 156581.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 30269.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2474 SDtfs, 20905 SDslu, 14375 SDs, 0 SdLazy, 49329 SolverSat, 6590 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 76325.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3636 GetRequests, 1119 SyntacticMatches, 64 SemanticMatches, 2453 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22283 ImplicationChecksByTransitivity, 114684.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4979occurred in iteration=70, InterpolantAutomatonStates: 1047, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8251.6ms AutomataMinimizationTime, 74 MinimizatonAttempts, 77630 StatesRemovedByMinimization, 67 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1263.7ms SsaConstructionTime, 7584.0ms SatisfiabilityAnalysisTime, 367225.9ms InterpolantComputationTime, 3450 NumberOfCodeBlocks, 3448 NumberOfCodeBlocksAsserted, 161 NumberOfCheckSat, 3309 ConstructedInterpolants, 312 QuantifiedInterpolants, 92390 SizeOfPredicates, 829 NumberOfNonLiveVariables, 20801 ConjunctsInSsa, 2541 ConjunctsInUnsatCore, 141 InterpolantComputations, 8 PerfectInterpolantSequences, 3105/5980 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2021-10-08 15:56:44,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 !SESSION 2021-10-08 15:44:40.601 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.12 java.vendor=Eclipse Foundation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_GB Framework arguments: -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c Command-line arguments: -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c !ENTRY org.eclipse.osgi 4 0 2021-10-08 15:56:45.024 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/757885f45/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438)