/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/parallel-ticket-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 19:16:15,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 19:16:15,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 19:16:15,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 19:16:15,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 19:16:15,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 19:16:15,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 19:16:15,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 19:16:15,547 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 19:16:15,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 19:16:15,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 19:16:15,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 19:16:15,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 19:16:15,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 19:16:15,556 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 19:16:15,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 19:16:15,556 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 19:16:15,557 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 19:16:15,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 19:16:15,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 19:16:15,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 19:16:15,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 19:16:15,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 19:16:15,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 19:16:15,560 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 19:16:15,560 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 19:16:15,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 19:16:15,560 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 19:16:15,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 19:16:15,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 19:16:15,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 19:16:15,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 19:16:15,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:16:15,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 19:16:15,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 19:16:15,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 19:16:15,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 19:16:15,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 19:16:15,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 19:16:15,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 19:16:15,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 19:16:15,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 19:16:16,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 19:16:16,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 19:16:16,050 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 19:16:16,051 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 19:16:16,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2021-10-13 19:16:16,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f14fec41e/7eb84c77c142499b87a25342d44d64c2/FLAG0ce977ce2 [2021-10-13 19:16:16,904 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 19:16:16,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2021-10-13 19:16:16,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f14fec41e/7eb84c77c142499b87a25342d44d64c2/FLAG0ce977ce2 [2021-10-13 19:16:17,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f14fec41e/7eb84c77c142499b87a25342d44d64c2 [2021-10-13 19:16:17,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 19:16:17,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 19:16:17,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 19:16:17,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 19:16:17,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 19:16:17,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:16:17" (1/1) ... [2021-10-13 19:16:17,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7719b348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17, skipping insertion in model container [2021-10-13 19:16:17,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:16:17" (1/1) ... [2021-10-13 19:16:17,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 19:16:17,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 19:16:17,610 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/parallel-ticket-3.wvr.c[2529,2542] [2021-10-13 19:16:17,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:16:17,637 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 19:16:17,701 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/parallel-ticket-3.wvr.c[2529,2542] [2021-10-13 19:16:17,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:16:17,729 INFO L208 MainTranslator]: Completed translation [2021-10-13 19:16:17,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17 WrapperNode [2021-10-13 19:16:17,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 19:16:17,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 19:16:17,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 19:16:17,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 19:16:17,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17" (1/1) ... [2021-10-13 19:16:17,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17" (1/1) ... [2021-10-13 19:16:17,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 19:16:17,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 19:16:17,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 19:16:17,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 19:16:17,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17" (1/1) ... [2021-10-13 19:16:17,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17" (1/1) ... [2021-10-13 19:16:17,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17" (1/1) ... [2021-10-13 19:16:17,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17" (1/1) ... [2021-10-13 19:16:17,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17" (1/1) ... [2021-10-13 19:16:17,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17" (1/1) ... [2021-10-13 19:16:17,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17" (1/1) ... [2021-10-13 19:16:17,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 19:16:17,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 19:16:17,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 19:16:17,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 19:16:17,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17" (1/1) ... [2021-10-13 19:16:17,929 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:16:17,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:17,970 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) [2021-10-13 19:16:18,006 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 [2021-10-13 19:16:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 19:16:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 19:16:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 19:16:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 19:16:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-13 19:16:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-13 19:16:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 19:16:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 19:16:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 19:16:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 19:16:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 19:16:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 19:16:18,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 19:16:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 19:16:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 19:16:18,081 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 19:16:18,789 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 19:16:18,789 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-13 19:16:18,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:18 BoogieIcfgContainer [2021-10-13 19:16:18,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 19:16:18,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 19:16:18,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 19:16:18,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 19:16:18,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:16:17" (1/3) ... [2021-10-13 19:16:18,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa9da91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:16:18, skipping insertion in model container [2021-10-13 19:16:18,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17" (2/3) ... [2021-10-13 19:16:18,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa9da91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:16:18, skipping insertion in model container [2021-10-13 19:16:18,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:18" (3/3) ... [2021-10-13 19:16:18,804 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2021-10-13 19:16:18,812 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 19:16:18,812 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 19:16:18,813 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-10-13 19:16:18,813 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 19:16:18,869 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,870 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,871 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,873 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,874 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,875 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,875 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,876 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,876 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,876 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,877 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,878 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,878 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,879 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,879 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,880 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,881 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,882 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,882 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,883 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,883 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,891 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,893 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,893 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,894 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,894 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,894 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,895 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,896 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,896 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,896 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,897 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,897 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,904 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,904 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,905 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,906 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,906 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,906 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,906 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,907 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,910 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,911 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,911 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,911 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,912 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,912 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,912 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,913 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,914 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,914 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,914 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,915 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,916 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,916 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,917 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,917 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,917 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,917 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,918 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,918 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,920 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,920 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,921 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,921 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,922 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,922 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,923 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,923 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,923 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,923 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,924 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,924 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,925 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,925 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,925 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,927 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,928 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,929 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,930 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,931 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,932 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,933 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,937 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,942 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,943 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,943 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,943 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,944 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,945 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,945 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,946 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,946 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,947 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,947 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,947 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,947 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,956 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,957 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,957 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,957 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,958 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,958 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,965 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,965 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,965 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,966 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,966 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,967 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,974 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:18,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:16:19,002 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-13 19:16:19,091 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 19:16:19,113 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 [2021-10-13 19:16:19,114 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-10-13 19:16:19,145 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 19:16:19,168 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 149 transitions, 322 flow [2021-10-13 19:16:19,174 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 149 transitions, 322 flow [2021-10-13 19:16:19,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 154 places, 149 transitions, 322 flow [2021-10-13 19:16:19,265 INFO L129 PetriNetUnfolder]: 5/146 cut-off events. [2021-10-13 19:16:19,266 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-13 19:16:19,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 5/146 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 172 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2021-10-13 19:16:19,280 INFO L116 LiptonReduction]: Number of co-enabled transitions 3640 [2021-10-13 19:16:25,770 INFO L131 LiptonReduction]: Checked pairs total: 9001 [2021-10-13 19:16:25,770 INFO L133 LiptonReduction]: Total number of compositions: 130 [2021-10-13 19:16:25,784 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 46 transitions, 116 flow [2021-10-13 19:16:25,947 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2658 states, 2531 states have (on average 3.4796523113393913) internal successors, (8807), 2657 states have internal predecessors, (8807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:25,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 2658 states, 2531 states have (on average 3.4796523113393913) internal successors, (8807), 2657 states have internal predecessors, (8807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:25,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:16:25,976 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:25,977 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:16:25,978 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:25,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:25,987 INFO L82 PathProgramCache]: Analyzing trace with hash 568644, now seen corresponding path program 1 times [2021-10-13 19:16:26,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:26,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619081479] [2021-10-13 19:16:26,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:26,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:26,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:26,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:26,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619081479] [2021-10-13 19:16:26,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619081479] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:26,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:26,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:16:26,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571318858] [2021-10-13 19:16:26,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:26,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:26,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:26,435 INFO L87 Difference]: Start difference. First operand has 2658 states, 2531 states have (on average 3.4796523113393913) internal successors, (8807), 2657 states have internal predecessors, (8807), 0 states have call successors, (0), 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 1.5) 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) [2021-10-13 19:16:26,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:26,576 INFO L93 Difference]: Finished difference Result 2586 states and 8065 transitions. [2021-10-13 19:16:26,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:26,578 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 3 [2021-10-13 19:16:26,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:26,630 INFO L225 Difference]: With dead ends: 2586 [2021-10-13 19:16:26,631 INFO L226 Difference]: Without dead ends: 2564 [2021-10-13 19:16:26,632 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:26,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2021-10-13 19:16:26,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2564. [2021-10-13 19:16:26,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2448 states have (on average 3.2655228758169934) internal successors, (7994), 2563 states have internal predecessors, (7994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:26,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 7994 transitions. [2021-10-13 19:16:26,904 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 7994 transitions. Word has length 3 [2021-10-13 19:16:26,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:26,905 INFO L470 AbstractCegarLoop]: Abstraction has 2564 states and 7994 transitions. [2021-10-13 19:16:26,905 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) [2021-10-13 19:16:26,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 7994 transitions. [2021-10-13 19:16:26,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 19:16:26,906 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:26,906 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 19:16:26,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 19:16:26,907 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:26,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:26,908 INFO L82 PathProgramCache]: Analyzing trace with hash -238868097, now seen corresponding path program 1 times [2021-10-13 19:16:26,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:26,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707396220] [2021-10-13 19:16:26,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:26,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:27,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:27,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707396220] [2021-10-13 19:16:27,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707396220] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:27,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:27,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:16:27,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642747199] [2021-10-13 19:16:27,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:27,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:27,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:27,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:27,074 INFO L87 Difference]: Start difference. First operand 2564 states and 7994 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:27,142 INFO L93 Difference]: Finished difference Result 1656 states and 4856 transitions. [2021-10-13 19:16:27,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:27,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2021-10-13 19:16:27,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:27,159 INFO L225 Difference]: With dead ends: 1656 [2021-10-13 19:16:27,160 INFO L226 Difference]: Without dead ends: 1656 [2021-10-13 19:16:27,161 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:27,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2021-10-13 19:16:27,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1656. [2021-10-13 19:16:27,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1656 states, 1596 states have (on average 3.0426065162907268) internal successors, (4856), 1655 states have internal predecessors, (4856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:27,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 4856 transitions. [2021-10-13 19:16:27,247 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 4856 transitions. Word has length 6 [2021-10-13 19:16:27,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:27,248 INFO L470 AbstractCegarLoop]: Abstraction has 1656 states and 4856 transitions. [2021-10-13 19:16:27,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:27,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 4856 transitions. [2021-10-13 19:16:27,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 19:16:27,249 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:27,249 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 19:16:27,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 19:16:27,250 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:27,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:27,251 INFO L82 PathProgramCache]: Analyzing trace with hash -238847422, now seen corresponding path program 1 times [2021-10-13 19:16:27,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:27,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17866759] [2021-10-13 19:16:27,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:27,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:27,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:27,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17866759] [2021-10-13 19:16:27,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17866759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:27,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:27,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:16:27,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225675508] [2021-10-13 19:16:27,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:16:27,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:27,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:16:27,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:16:27,346 INFO L87 Difference]: Start difference. First operand 1656 states and 4856 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:27,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:27,403 INFO L93 Difference]: Finished difference Result 1688 states and 4685 transitions. [2021-10-13 19:16:27,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:16:27,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2021-10-13 19:16:27,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:27,420 INFO L225 Difference]: With dead ends: 1688 [2021-10-13 19:16:27,421 INFO L226 Difference]: Without dead ends: 1688 [2021-10-13 19:16:27,421 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:16:27,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2021-10-13 19:16:27,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1464. [2021-10-13 19:16:27,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1413 states have (on average 2.9964614295824488) internal successors, (4234), 1463 states have internal predecessors, (4234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:27,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 4234 transitions. [2021-10-13 19:16:27,529 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 4234 transitions. Word has length 6 [2021-10-13 19:16:27,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:27,533 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 4234 transitions. [2021-10-13 19:16:27,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:27,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 4234 transitions. [2021-10-13 19:16:27,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 19:16:27,534 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:27,534 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 19:16:27,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 19:16:27,535 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:27,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:27,536 INFO L82 PathProgramCache]: Analyzing trace with hash -238847421, now seen corresponding path program 1 times [2021-10-13 19:16:27,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:27,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126887474] [2021-10-13 19:16:27,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:27,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:27,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:27,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:27,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126887474] [2021-10-13 19:16:27,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126887474] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:27,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:27,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:16:27,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214352811] [2021-10-13 19:16:27,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:27,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:27,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:27,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:27,586 INFO L87 Difference]: Start difference. First operand 1464 states and 4234 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:27,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:27,616 INFO L93 Difference]: Finished difference Result 1116 states and 3161 transitions. [2021-10-13 19:16:27,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:27,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2021-10-13 19:16:27,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:27,628 INFO L225 Difference]: With dead ends: 1116 [2021-10-13 19:16:27,628 INFO L226 Difference]: Without dead ends: 1116 [2021-10-13 19:16:27,629 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 [2021-10-13 19:16:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-10-13 19:16:27,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2021-10-13 19:16:27,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1083 states have (on average 2.9187442289935364) internal successors, (3161), 1115 states have internal predecessors, (3161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:27,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 3161 transitions. [2021-10-13 19:16:27,686 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 3161 transitions. Word has length 6 [2021-10-13 19:16:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:27,687 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 3161 transitions. [2021-10-13 19:16:27,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:27,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 3161 transitions. [2021-10-13 19:16:27,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:16:27,689 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:27,689 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:27,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 19:16:27,690 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:27,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:27,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1257839861, now seen corresponding path program 1 times [2021-10-13 19:16:27,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:27,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799143633] [2021-10-13 19:16:27,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:27,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:27,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:27,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:27,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799143633] [2021-10-13 19:16:27,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799143633] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:27,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:27,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:16:27,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452985075] [2021-10-13 19:16:27,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:16:27,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:27,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:16:27,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:16:27,765 INFO L87 Difference]: Start difference. First operand 1116 states and 3161 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:27,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:27,802 INFO L93 Difference]: Finished difference Result 892 states and 2486 transitions. [2021-10-13 19:16:27,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:16:27,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2021-10-13 19:16:27,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:27,812 INFO L225 Difference]: With dead ends: 892 [2021-10-13 19:16:27,812 INFO L226 Difference]: Without dead ends: 892 [2021-10-13 19:16:27,813 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:16:27,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2021-10-13 19:16:27,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 892. [2021-10-13 19:16:27,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 874 states have (on average 2.8443935926773456) internal successors, (2486), 891 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:27,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 2486 transitions. [2021-10-13 19:16:27,858 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 2486 transitions. Word has length 9 [2021-10-13 19:16:27,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:27,859 INFO L470 AbstractCegarLoop]: Abstraction has 892 states and 2486 transitions. [2021-10-13 19:16:27,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:27,859 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 2486 transitions. [2021-10-13 19:16:27,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:16:27,863 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:27,863 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:27,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 19:16:27,864 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:27,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:27,865 INFO L82 PathProgramCache]: Analyzing trace with hash 920672338, now seen corresponding path program 1 times [2021-10-13 19:16:27,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:27,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19225566] [2021-10-13 19:16:27,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:27,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:27,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:27,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:27,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19225566] [2021-10-13 19:16:27,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19225566] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:27,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:27,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:16:27,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447786765] [2021-10-13 19:16:27,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:27,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:27,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:27,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:27,956 INFO L87 Difference]: Start difference. First operand 892 states and 2486 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) [2021-10-13 19:16:27,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:27,990 INFO L93 Difference]: Finished difference Result 768 states and 2174 transitions. [2021-10-13 19:16:27,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:27,990 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 13 [2021-10-13 19:16:27,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:27,997 INFO L225 Difference]: With dead ends: 768 [2021-10-13 19:16:27,998 INFO L226 Difference]: Without dead ends: 768 [2021-10-13 19:16:27,998 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:28,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2021-10-13 19:16:28,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2021-10-13 19:16:28,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 762 states have (on average 2.853018372703412) internal successors, (2174), 767 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:28,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 2174 transitions. [2021-10-13 19:16:28,038 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 2174 transitions. Word has length 13 [2021-10-13 19:16:28,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:28,038 INFO L470 AbstractCegarLoop]: Abstraction has 768 states and 2174 transitions. [2021-10-13 19:16:28,040 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) [2021-10-13 19:16:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 2174 transitions. [2021-10-13 19:16:28,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:16:28,050 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:28,050 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:28,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 19:16:28,052 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:28,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:28,058 INFO L82 PathProgramCache]: Analyzing trace with hash 635564268, now seen corresponding path program 1 times [2021-10-13 19:16:28,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:28,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485394168] [2021-10-13 19:16:28,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:28,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:28,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:28,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485394168] [2021-10-13 19:16:28,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485394168] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:28,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:28,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:16:28,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423790842] [2021-10-13 19:16:28,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:16:28,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:28,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:16:28,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:16:28,166 INFO L87 Difference]: Start difference. First operand 768 states and 2174 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-10-13 19:16:28,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:28,231 INFO L93 Difference]: Finished difference Result 796 states and 2171 transitions. [2021-10-13 19:16:28,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:16:28,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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 14 [2021-10-13 19:16:28,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:28,268 INFO L225 Difference]: With dead ends: 796 [2021-10-13 19:16:28,268 INFO L226 Difference]: Without dead ends: 754 [2021-10-13 19:16:28,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:16:28,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2021-10-13 19:16:28,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 740. [2021-10-13 19:16:28,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 735 states have (on average 2.82312925170068) internal successors, (2075), 739 states have internal predecessors, (2075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:28,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 2075 transitions. [2021-10-13 19:16:28,299 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 2075 transitions. Word has length 14 [2021-10-13 19:16:28,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:28,300 INFO L470 AbstractCegarLoop]: Abstraction has 740 states and 2075 transitions. [2021-10-13 19:16:28,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-10-13 19:16:28,301 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 2075 transitions. [2021-10-13 19:16:28,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:16:28,302 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:28,303 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:28,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 19:16:28,304 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:28,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:28,304 INFO L82 PathProgramCache]: Analyzing trace with hash 191085358, now seen corresponding path program 1 times [2021-10-13 19:16:28,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:28,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846800393] [2021-10-13 19:16:28,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:28,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:28,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:28,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:28,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846800393] [2021-10-13 19:16:28,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846800393] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:28,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:28,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:16:28,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338885659] [2021-10-13 19:16:28,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:16:28,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:28,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:16:28,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:16:28,403 INFO L87 Difference]: Start difference. First operand 740 states and 2075 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-10-13 19:16:28,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:28,485 INFO L93 Difference]: Finished difference Result 782 states and 2135 transitions. [2021-10-13 19:16:28,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:16:28,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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 14 [2021-10-13 19:16:28,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:28,492 INFO L225 Difference]: With dead ends: 782 [2021-10-13 19:16:28,492 INFO L226 Difference]: Without dead ends: 708 [2021-10-13 19:16:28,493 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:16:28,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2021-10-13 19:16:28,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 704. [2021-10-13 19:16:28,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 700 states have (on average 2.8) internal successors, (1960), 703 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:28,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1960 transitions. [2021-10-13 19:16:28,522 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1960 transitions. Word has length 14 [2021-10-13 19:16:28,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:28,522 INFO L470 AbstractCegarLoop]: Abstraction has 704 states and 1960 transitions. [2021-10-13 19:16:28,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-10-13 19:16:28,523 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1960 transitions. [2021-10-13 19:16:28,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:16:28,525 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:28,526 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:28,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 19:16:28,526 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:28,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:28,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1799273358, now seen corresponding path program 1 times [2021-10-13 19:16:28,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:28,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094298634] [2021-10-13 19:16:28,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:28,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:28,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:28,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094298634] [2021-10-13 19:16:28,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094298634] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:28,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:28,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:16:28,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762408169] [2021-10-13 19:16:28,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:16:28,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:28,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:16:28,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:16:28,689 INFO L87 Difference]: Start difference. First operand 704 states and 1960 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2021-10-13 19:16:28,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:28,781 INFO L93 Difference]: Finished difference Result 732 states and 1996 transitions. [2021-10-13 19:16:28,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:16:28,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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 15 [2021-10-13 19:16:28,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:28,787 INFO L225 Difference]: With dead ends: 732 [2021-10-13 19:16:28,787 INFO L226 Difference]: Without dead ends: 644 [2021-10-13 19:16:28,787 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:16:28,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2021-10-13 19:16:28,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2021-10-13 19:16:28,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 641 states have (on average 2.7737909516380657) internal successors, (1778), 643 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:28,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1778 transitions. [2021-10-13 19:16:28,813 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1778 transitions. Word has length 15 [2021-10-13 19:16:28,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:28,814 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 1778 transitions. [2021-10-13 19:16:28,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2021-10-13 19:16:28,814 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1778 transitions. [2021-10-13 19:16:28,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:16:28,817 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:28,817 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:28,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 19:16:28,818 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:28,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:28,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1968857543, now seen corresponding path program 1 times [2021-10-13 19:16:28,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:28,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575922419] [2021-10-13 19:16:28,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:28,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:28,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:28,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:28,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575922419] [2021-10-13 19:16:28,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575922419] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:28,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:28,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:16:28,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039365076] [2021-10-13 19:16:28,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:16:28,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:28,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:16:28,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:16:28,893 INFO L87 Difference]: Start difference. First operand 644 states and 1778 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:28,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:28,969 INFO L93 Difference]: Finished difference Result 670 states and 1818 transitions. [2021-10-13 19:16:28,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:16:28,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2021-10-13 19:16:28,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:28,975 INFO L225 Difference]: With dead ends: 670 [2021-10-13 19:16:28,975 INFO L226 Difference]: Without dead ends: 626 [2021-10-13 19:16:28,976 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 27.7ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:16:28,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2021-10-13 19:16:28,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 626. [2021-10-13 19:16:28,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 623 states have (on average 2.754414125200642) internal successors, (1716), 625 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 1716 transitions. [2021-10-13 19:16:29,001 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 1716 transitions. Word has length 21 [2021-10-13 19:16:29,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:29,001 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 1716 transitions. [2021-10-13 19:16:29,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,002 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 1716 transitions. [2021-10-13 19:16:29,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:16:29,005 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:29,005 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:29,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 19:16:29,005 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:29,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:29,006 INFO L82 PathProgramCache]: Analyzing trace with hash -567361098, now seen corresponding path program 1 times [2021-10-13 19:16:29,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:29,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242146980] [2021-10-13 19:16:29,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:29,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:29,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:29,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:29,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242146980] [2021-10-13 19:16:29,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242146980] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:29,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:29,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:16:29,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128321553] [2021-10-13 19:16:29,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:16:29,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:29,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:16:29,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:16:29,093 INFO L87 Difference]: Start difference. First operand 626 states and 1716 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:29,180 INFO L93 Difference]: Finished difference Result 642 states and 1740 transitions. [2021-10-13 19:16:29,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:16:29,180 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2021-10-13 19:16:29,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:29,185 INFO L225 Difference]: With dead ends: 642 [2021-10-13 19:16:29,185 INFO L226 Difference]: Without dead ends: 494 [2021-10-13 19:16:29,186 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 27.6ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:16:29,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2021-10-13 19:16:29,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2021-10-13 19:16:29,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 491 states have (on average 2.7209775967413443) internal successors, (1336), 493 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 1336 transitions. [2021-10-13 19:16:29,206 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 1336 transitions. Word has length 21 [2021-10-13 19:16:29,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:29,207 INFO L470 AbstractCegarLoop]: Abstraction has 494 states and 1336 transitions. [2021-10-13 19:16:29,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,207 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 1336 transitions. [2021-10-13 19:16:29,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:16:29,210 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:29,210 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:29,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 19:16:29,210 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:29,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:29,211 INFO L82 PathProgramCache]: Analyzing trace with hash 568879225, now seen corresponding path program 2 times [2021-10-13 19:16:29,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:29,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875584867] [2021-10-13 19:16:29,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:29,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:29,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:29,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:29,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875584867] [2021-10-13 19:16:29,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875584867] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:29,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:29,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:16:29,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142051337] [2021-10-13 19:16:29,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:16:29,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:29,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:16:29,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:16:29,283 INFO L87 Difference]: Start difference. First operand 494 states and 1336 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:29,341 INFO L93 Difference]: Finished difference Result 488 states and 1325 transitions. [2021-10-13 19:16:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:16:29,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2021-10-13 19:16:29,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:29,346 INFO L225 Difference]: With dead ends: 488 [2021-10-13 19:16:29,346 INFO L226 Difference]: Without dead ends: 452 [2021-10-13 19:16:29,346 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.4ms TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:16:29,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-10-13 19:16:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2021-10-13 19:16:29,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 450 states have (on average 2.7844444444444445) internal successors, (1253), 451 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 1253 transitions. [2021-10-13 19:16:29,366 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 1253 transitions. Word has length 21 [2021-10-13 19:16:29,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:29,366 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 1253 transitions. [2021-10-13 19:16:29,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,367 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 1253 transitions. [2021-10-13 19:16:29,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:16:29,369 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:29,369 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:29,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 19:16:29,370 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:29,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:29,371 INFO L82 PathProgramCache]: Analyzing trace with hash -136194112, now seen corresponding path program 1 times [2021-10-13 19:16:29,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:29,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396415861] [2021-10-13 19:16:29,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:29,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:29,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:29,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:29,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396415861] [2021-10-13 19:16:29,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396415861] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:29,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:29,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:16:29,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699479773] [2021-10-13 19:16:29,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:16:29,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:29,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:16:29,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:16:29,440 INFO L87 Difference]: Start difference. First operand 452 states and 1253 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:29,506 INFO L93 Difference]: Finished difference Result 462 states and 1266 transitions. [2021-10-13 19:16:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:16:29,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2021-10-13 19:16:29,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:29,510 INFO L225 Difference]: With dead ends: 462 [2021-10-13 19:16:29,510 INFO L226 Difference]: Without dead ends: 342 [2021-10-13 19:16:29,510 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 27.4ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:16:29,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-10-13 19:16:29,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-10-13 19:16:29,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 340 states have (on average 2.7058823529411766) internal successors, (920), 341 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 920 transitions. [2021-10-13 19:16:29,523 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 920 transitions. Word has length 21 [2021-10-13 19:16:29,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:29,523 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 920 transitions. [2021-10-13 19:16:29,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,524 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 920 transitions. [2021-10-13 19:16:29,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:16:29,525 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:29,526 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:29,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 19:16:29,526 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:29,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:29,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1917791754, now seen corresponding path program 2 times [2021-10-13 19:16:29,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:29,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869447615] [2021-10-13 19:16:29,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:29,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:29,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:29,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:29,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869447615] [2021-10-13 19:16:29,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869447615] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:29,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:29,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:16:29,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494704114] [2021-10-13 19:16:29,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:16:29,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:29,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:16:29,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:16:29,593 INFO L87 Difference]: Start difference. First operand 342 states and 920 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:29,641 INFO L93 Difference]: Finished difference Result 338 states and 913 transitions. [2021-10-13 19:16:29,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:16:29,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2021-10-13 19:16:29,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:29,644 INFO L225 Difference]: With dead ends: 338 [2021-10-13 19:16:29,644 INFO L226 Difference]: Without dead ends: 314 [2021-10-13 19:16:29,645 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.0ms TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:16:29,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-10-13 19:16:29,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2021-10-13 19:16:29,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 2.757188498402556) internal successors, (863), 313 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 863 transitions. [2021-10-13 19:16:29,657 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 863 transitions. Word has length 21 [2021-10-13 19:16:29,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:29,657 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 863 transitions. [2021-10-13 19:16:29,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,658 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 863 transitions. [2021-10-13 19:16:29,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:16:29,659 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:29,660 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:29,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 19:16:29,660 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:29,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:29,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1917737096, now seen corresponding path program 2 times [2021-10-13 19:16:29,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:29,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109414868] [2021-10-13 19:16:29,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:29,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:29,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:29,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:29,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109414868] [2021-10-13 19:16:29,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109414868] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:29,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:29,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:16:29,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748608828] [2021-10-13 19:16:29,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:16:29,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:29,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:16:29,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:16:29,726 INFO L87 Difference]: Start difference. First operand 314 states and 863 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:29,765 INFO L93 Difference]: Finished difference Result 312 states and 860 transitions. [2021-10-13 19:16:29,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:16:29,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2021-10-13 19:16:29,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:29,766 INFO L225 Difference]: With dead ends: 312 [2021-10-13 19:16:29,767 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 19:16:29,767 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.0ms TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:16:29,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 19:16:29,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 19:16:29,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 19:16:29,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-10-13 19:16:29,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:29,768 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 19:16:29,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:29,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 19:16:29,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 19:16:29,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,774 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,774 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,774 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,774 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,774 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,775 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 19:16:29,775 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 19:16:29,775 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 19:16:29,775 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,775 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,776 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,776 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,776 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,776 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,776 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,777 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,777 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,777 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,777 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,777 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:16:29,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 19:16:29,787 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 19:16:29,787 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 19:16:29,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:16:29 BasicIcfg [2021-10-13 19:16:29,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 19:16:29,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 19:16:29,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 19:16:29,792 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 19:16:29,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:18" (3/4) ... [2021-10-13 19:16:29,796 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 19:16:29,803 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-13 19:16:29,803 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-13 19:16:29,803 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-13 19:16:29,810 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-13 19:16:29,810 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 19:16:29,810 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:16:29,811 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:16:29,871 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/parallel-ticket-3.wvr.c-witness.graphml [2021-10-13 19:16:29,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 19:16:29,875 INFO L168 Benchmark]: Toolchain (without parser) took 12664.51 ms. Allocated memory was 151.0 MB in the beginning and 230.7 MB in the end (delta: 79.7 MB). Free memory was 125.3 MB in the beginning and 177.9 MB in the end (delta: -52.6 MB). Peak memory consumption was 115.6 MB. Max. memory is 8.0 GB. [2021-10-13 19:16:29,876 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 19:16:29,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.32 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 114.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:16:29,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.29 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 112.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:16:29,877 INFO L168 Benchmark]: Boogie Preprocessor took 75.17 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 111.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:16:29,878 INFO L168 Benchmark]: RCFGBuilder took 884.00 ms. Allocated memory is still 151.0 MB. Free memory was 110.9 MB in the beginning and 125.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. [2021-10-13 19:16:29,878 INFO L168 Benchmark]: TraceAbstraction took 10995.43 ms. Allocated memory was 151.0 MB in the beginning and 230.7 MB in the end (delta: 79.7 MB). Free memory was 125.4 MB in the beginning and 92.8 MB in the end (delta: 32.6 MB). Peak memory consumption was 112.3 MB. Max. memory is 8.0 GB. [2021-10-13 19:16:29,879 INFO L168 Benchmark]: Witness Printer took 81.16 ms. Allocated memory is still 230.7 MB. Free memory was 92.8 MB in the beginning and 177.9 MB in the end (delta: -85.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:16:29,881 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 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 511.32 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 114.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 99.29 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 112.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 75.17 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 111.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 884.00 ms. Allocated memory is still 151.0 MB. Free memory was 110.9 MB in the beginning and 125.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10995.43 ms. Allocated memory was 151.0 MB in the beginning and 230.7 MB in the end (delta: 79.7 MB). Free memory was 125.4 MB in the beginning and 92.8 MB in the end (delta: 32.6 MB). Peak memory consumption was 112.3 MB. Max. memory is 8.0 GB. * Witness Printer took 81.16 ms. Allocated memory is still 230.7 MB. Free memory was 92.8 MB in the beginning and 177.9 MB in the end (delta: -85.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6597.0ms, 154 PlacesBefore, 54 PlacesAfterwards, 149 TransitionsBefore, 46 TransitionsAfterwards, 3640 CoEnabledTransitionPairs, 7 FixpointIterations, 65 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 130 TotalNumberOfCompositions, 9001 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4980, positive: 4785, positive conditional: 0, positive unconditional: 4785, negative: 195, negative conditional: 0, negative unconditional: 195, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2615, positive: 2561, positive conditional: 0, positive unconditional: 2561, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2615, positive: 2548, positive conditional: 0, positive unconditional: 2548, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 67, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 143, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4980, positive: 2224, positive conditional: 0, positive unconditional: 2224, negative: 141, negative conditional: 0, negative unconditional: 141, unknown: 2615, unknown conditional: 0, unknown unconditional: 2615] , Statistics on independence cache: Total cache size (in pairs): 353, Positive cache size: 328, Positive conditional cache size: 0, Positive unconditional cache size: 328, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - 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 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 206 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 10694.0ms, OverallIterations: 15, TraceHistogramMax: 1, EmptinessCheckTime: 64.6ms, AutomataDifference: 1239.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6833.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 499 SDtfs, 838 SDslu, 851 SDs, 0 SdLazy, 561 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 451.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 232.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2658occurred in iteration=0, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 760.7ms AutomataMinimizationTime, 15 MinimizatonAttempts, 242 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 52.7ms SsaConstructionTime, 535.4ms SatisfiabilityAnalysisTime, 833.4ms InterpolantComputationTime, 212 NumberOfCodeBlocks, 212 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 629 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 19:16:29,943 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 Received shutdown request...