/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/chl-word-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 15:48:11,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 15:48:11,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 15:48:11,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-08 15:48:11,962 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-08 15:48:11,992 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 15:48:11,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 15:48:11,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 15:48:11,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 15:48:11,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 15:48:11,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 15:48:11,995 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 15:48:11,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 15:48:11,996 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 15:48:11,996 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 15:48:11,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 15:48:11,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 15:48:11,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 15:48:11,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-08 15:48:11,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 15:48:11,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-08 15:48:11,997 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-08 15:48:11,997 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 15:48:11,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-08 15:48:11,998 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 15:48:11,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-08 15:48:11,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 15:48:11,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 15:48:11,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 15:48:11,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:48:11,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 15:48:12,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 15:48:12,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-08 15:48:12,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-08 15:48:12,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-08 15:48:12,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-08 15:48:12,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 15:48:12,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 15:48:12,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 15:48:12,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 15:48:12,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 15:48:12,458 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 15:48:12,459 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 15:48:12,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2021-10-08 15:48:12,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d37c958a/779825179e2f40fda83a68174cc72036/FLAGfafb47870 [2021-10-08 15:48:13,311 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 15:48:13,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2021-10-08 15:48:13,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d37c958a/779825179e2f40fda83a68174cc72036/FLAGfafb47870 [2021-10-08 15:48:13,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d37c958a/779825179e2f40fda83a68174cc72036 [2021-10-08 15:48:13,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 15:48:13,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-08 15:48:13,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 15:48:13,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 15:48:13,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 15:48:13,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 03:48:13" (1/1) ... [2021-10-08 15:48:13,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad32098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13, skipping insertion in model container [2021-10-08 15:48:13,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 03:48:13" (1/1) ... [2021-10-08 15:48:13,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 15:48:13,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 15:48:13,915 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3288,3301] [2021-10-08 15:48:13,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 15:48:13,931 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 15:48:13,964 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3288,3301] [2021-10-08 15:48:13,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 15:48:13,985 INFO L208 MainTranslator]: Completed translation [2021-10-08 15:48:13,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13 WrapperNode [2021-10-08 15:48:13,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 15:48:13,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 15:48:13,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 15:48:13,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 15:48:13,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13" (1/1) ... [2021-10-08 15:48:14,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13" (1/1) ... [2021-10-08 15:48:14,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 15:48:14,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 15:48:14,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 15:48:14,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 15:48:14,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13" (1/1) ... [2021-10-08 15:48:14,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13" (1/1) ... [2021-10-08 15:48:14,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13" (1/1) ... [2021-10-08 15:48:14,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13" (1/1) ... [2021-10-08 15:48:14,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13" (1/1) ... [2021-10-08 15:48:14,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13" (1/1) ... [2021-10-08 15:48:14,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13" (1/1) ... [2021-10-08 15:48:14,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 15:48:14,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 15:48:14,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 15:48:14,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 15:48:14,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13" (1/1) ... [2021-10-08 15:48:14,109 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:48:14,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:14,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-08 15:48:14,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-08 15:48:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 15:48:14,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 15:48:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 15:48:14,202 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 15:48:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-08 15:48:14,202 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-08 15:48:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-08 15:48:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 15:48:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-08 15:48:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-08 15:48:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 15:48:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 15:48:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-08 15:48:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 15:48:14,206 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 15:48:15,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 15:48:15,090 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-08 15:48:15,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:48:15 BoogieIcfgContainer [2021-10-08 15:48:15,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 15:48:15,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 15:48:15,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 15:48:15,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 15:48:15,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 03:48:13" (1/3) ... [2021-10-08 15:48:15,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d89df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 03:48:15, skipping insertion in model container [2021-10-08 15:48:15,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:13" (2/3) ... [2021-10-08 15:48:15,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d89df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 03:48:15, skipping insertion in model container [2021-10-08 15:48:15,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:48:15" (3/3) ... [2021-10-08 15:48:15,105 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2021-10-08 15:48:15,112 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-08 15:48:15,112 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 15:48:15,112 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2021-10-08 15:48:15,112 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 15:48:15,169 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,170 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,170 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,170 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,171 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,172 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,172 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,172 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,172 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,173 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,174 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,174 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,174 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,174 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,175 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,175 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,176 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,176 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,177 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,177 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,177 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,177 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,178 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,179 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,179 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,179 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,179 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,179 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,181 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,181 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,182 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,182 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,182 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,182 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,182 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,182 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,183 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,183 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,183 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,183 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,184 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,184 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,184 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,184 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,184 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,185 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,185 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,185 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,185 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,186 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,187 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,187 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,187 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,188 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,188 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,189 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,190 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,191 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,191 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,191 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,191 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,194 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,194 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,195 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,195 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,195 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,195 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,196 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,196 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,196 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,196 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,196 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,197 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,198 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,198 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,198 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,199 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,199 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,200 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,201 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,206 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,212 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,214 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,215 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,215 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,215 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,215 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,216 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,216 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,216 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,216 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,216 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,217 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,218 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,218 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,218 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,218 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,218 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,219 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,219 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,219 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,219 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,220 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,220 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,224 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,224 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,224 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,224 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,225 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,225 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,225 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,225 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,226 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,226 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,226 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,226 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,226 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,227 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,227 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,227 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,227 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,228 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,228 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,228 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,230 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,230 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,230 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,230 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,233 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,233 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,233 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,233 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,233 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,233 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,234 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,234 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,234 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,234 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,234 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,235 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,235 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,235 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,235 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,235 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,235 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,236 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,238 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,239 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,239 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,239 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,240 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,240 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,240 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,240 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,241 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,241 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,241 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,241 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,241 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,242 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,242 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,242 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,242 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,242 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,243 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,243 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,243 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,243 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,244 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,244 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,244 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,244 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,244 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,245 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,245 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,246 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,250 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,252 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,255 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,256 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,256 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,256 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,256 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,258 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,258 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,258 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,258 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,258 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,259 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,259 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,259 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,259 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,268 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,268 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,268 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,269 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,269 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,269 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,269 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,269 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,270 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,270 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,270 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,270 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,271 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,271 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,271 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,271 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,272 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,272 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,272 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,272 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,273 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,273 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,273 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,273 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,273 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,274 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,274 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,274 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,274 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,274 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,274 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,275 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,277 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,277 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,280 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,281 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,281 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,281 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,281 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,281 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,282 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,282 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,282 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,282 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,282 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,287 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,287 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,287 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,287 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,288 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,288 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,288 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,288 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,288 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,289 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,289 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,290 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,291 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,291 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,291 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,291 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,291 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,292 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,292 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,292 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,292 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,292 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:15,301 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-08 15:48:15,360 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 15:48:15,369 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-08 15:48:15,369 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-10-08 15:48:15,390 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 15:48:15,404 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 319 places, 343 transitions, 710 flow [2021-10-08 15:48:15,407 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 319 places, 343 transitions, 710 flow [2021-10-08 15:48:15,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 319 places, 343 transitions, 710 flow [2021-10-08 15:48:15,607 INFO L129 PetriNetUnfolder]: 34/340 cut-off events. [2021-10-08 15:48:15,608 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-08 15:48:15,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 340 events. 34/340 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 693 event pairs, 0 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 268. Up to 3 conditions per place. [2021-10-08 15:48:15,638 INFO L116 LiptonReduction]: Number of co-enabled transitions 17280 [2021-10-08 15:48:29,660 INFO L131 LiptonReduction]: Checked pairs total: 22709 [2021-10-08 15:48:29,660 INFO L133 LiptonReduction]: Total number of compositions: 390 [2021-10-08 15:48:29,671 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 62 transitions, 148 flow [2021-10-08 15:48:29,786 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2131 states, 2001 states have (on average 4.085957021489255) internal successors, (8176), 2130 states have internal predecessors, (8176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:29,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 2131 states, 2001 states have (on average 4.085957021489255) internal successors, (8176), 2130 states have internal predecessors, (8176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:29,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-08 15:48:29,804 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:29,805 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-08 15:48:29,806 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:29,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:29,813 INFO L82 PathProgramCache]: Analyzing trace with hash 44560, now seen corresponding path program 1 times [2021-10-08 15:48:29,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:29,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160065472] [2021-10-08 15:48:29,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:29,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:30,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:30,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:30,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160065472] [2021-10-08 15:48:30,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160065472] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:30,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:30,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 15:48:30,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525841010] [2021-10-08 15:48:30,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:48:30,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:30,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:48:30,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:48:30,125 INFO L87 Difference]: Start difference. First operand has 2131 states, 2001 states have (on average 4.085957021489255) internal successors, (8176), 2130 states have internal predecessors, (8176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:30,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:30,297 INFO L93 Difference]: Finished difference Result 4255 states and 16345 transitions. [2021-10-08 15:48:30,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:48:30,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-10-08 15:48:30,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:30,372 INFO L225 Difference]: With dead ends: 4255 [2021-10-08 15:48:30,372 INFO L226 Difference]: Without dead ends: 4255 [2021-10-08 15:48:30,373 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:48:30,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4255 states. [2021-10-08 15:48:30,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4255 to 2134. [2021-10-08 15:48:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 2004 states have (on average 4.082834331337326) internal successors, (8182), 2133 states have internal predecessors, (8182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:30,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 8182 transitions. [2021-10-08 15:48:30,679 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 8182 transitions. Word has length 2 [2021-10-08 15:48:30,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:30,679 INFO L470 AbstractCegarLoop]: Abstraction has 2134 states and 8182 transitions. [2021-10-08 15:48:30,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:30,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 8182 transitions. [2021-10-08 15:48:30,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 15:48:30,680 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:30,680 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 15:48:30,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-08 15:48:30,681 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:30,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:30,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1384101, now seen corresponding path program 1 times [2021-10-08 15:48:30,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:30,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20526580] [2021-10-08 15:48:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:30,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:30,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:30,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:30,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20526580] [2021-10-08 15:48:30,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20526580] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:30,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165471423] [2021-10-08 15:48:30,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:30,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:30,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:30,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:30,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-08 15:48:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:30,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 15:48:30,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:31,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:31,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165471423] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:31,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:48:31,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2021-10-08 15:48:31,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085406601] [2021-10-08 15:48:31,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:31,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:31,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:31,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:31,014 INFO L87 Difference]: Start difference. First operand 2134 states and 8182 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:31,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:31,203 INFO L93 Difference]: Finished difference Result 4252 states and 16342 transitions. [2021-10-08 15:48:31,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 15:48:31,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 15:48:31,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:31,304 INFO L225 Difference]: With dead ends: 4252 [2021-10-08 15:48:31,304 INFO L226 Difference]: Without dead ends: 4252 [2021-10-08 15:48:31,305 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:31,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4252 states. [2021-10-08 15:48:31,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4252 to 2131. [2021-10-08 15:48:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2131 states, 2004 states have (on average 4.081337325349302) internal successors, (8179), 2130 states have internal predecessors, (8179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:31,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2131 states to 2131 states and 8179 transitions. [2021-10-08 15:48:31,485 INFO L78 Accepts]: Start accepts. Automaton has 2131 states and 8179 transitions. Word has length 3 [2021-10-08 15:48:31,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:31,486 INFO L470 AbstractCegarLoop]: Abstraction has 2131 states and 8179 transitions. [2021-10-08 15:48:31,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:31,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2131 states and 8179 transitions. [2021-10-08 15:48:31,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 15:48:31,486 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:31,487 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 15:48:31,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-08 15:48:31,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:31,690 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:31,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:31,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1384102, now seen corresponding path program 1 times [2021-10-08 15:48:31,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:31,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150809432] [2021-10-08 15:48:31,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:31,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:31,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:31,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:31,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150809432] [2021-10-08 15:48:31,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150809432] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:31,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564854510] [2021-10-08 15:48:31,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:31,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:31,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:31,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:31,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-08 15:48:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:31,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 15:48:31,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:31,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:31,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564854510] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:31,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:31,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-08 15:48:31,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682406538] [2021-10-08 15:48:31,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:31,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:31,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:31,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:31,876 INFO L87 Difference]: Start difference. First operand 2131 states and 8179 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:32,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:32,062 INFO L93 Difference]: Finished difference Result 6376 states and 24511 transitions. [2021-10-08 15:48:32,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 15:48:32,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 15:48:32,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:32,134 INFO L225 Difference]: With dead ends: 6376 [2021-10-08 15:48:32,134 INFO L226 Difference]: Without dead ends: 6376 [2021-10-08 15:48:32,134 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:32,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6376 states. [2021-10-08 15:48:32,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6376 to 2134. [2021-10-08 15:48:32,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 2007 states have (on average 4.078226208271051) internal successors, (8185), 2133 states have internal predecessors, (8185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:32,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 8185 transitions. [2021-10-08 15:48:32,310 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 8185 transitions. Word has length 3 [2021-10-08 15:48:32,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:32,311 INFO L470 AbstractCegarLoop]: Abstraction has 2134 states and 8185 transitions. [2021-10-08 15:48:32,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:32,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 8185 transitions. [2021-10-08 15:48:32,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-08 15:48:32,312 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:32,312 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-08 15:48:32,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:32,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:32,527 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:32,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:32,529 INFO L82 PathProgramCache]: Analyzing trace with hash 42909873, now seen corresponding path program 2 times [2021-10-08 15:48:32,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:32,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124808079] [2021-10-08 15:48:32,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:32,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:32,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:32,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:32,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124808079] [2021-10-08 15:48:32,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124808079] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:32,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478079030] [2021-10-08 15:48:32,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:48:32,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:32,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:32,625 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:32,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-08 15:48:32,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 15:48:32,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:48:32,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 15:48:32,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:32,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 15:48:32,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478079030] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:32,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:48:32,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-08 15:48:32,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988475626] [2021-10-08 15:48:32,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:48:32,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:32,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:48:32,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:48:32,738 INFO L87 Difference]: Start difference. First operand 2134 states and 8185 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:32,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:32,856 INFO L93 Difference]: Finished difference Result 2133 states and 8184 transitions. [2021-10-08 15:48:32,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:48:32,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-08 15:48:32,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:32,871 INFO L225 Difference]: With dead ends: 2133 [2021-10-08 15:48:32,872 INFO L226 Difference]: Without dead ends: 2133 [2021-10-08 15:48:32,872 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:48:32,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2133 states. [2021-10-08 15:48:32,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2133 to 2131. [2021-10-08 15:48:32,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2131 states, 2005 states have (on average 4.079800498753118) internal successors, (8180), 2130 states have internal predecessors, (8180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:32,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2131 states to 2131 states and 8180 transitions. [2021-10-08 15:48:32,991 INFO L78 Accepts]: Start accepts. Automaton has 2131 states and 8180 transitions. Word has length 4 [2021-10-08 15:48:32,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:32,992 INFO L470 AbstractCegarLoop]: Abstraction has 2131 states and 8180 transitions. [2021-10-08 15:48:32,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:32,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2131 states and 8180 transitions. [2021-10-08 15:48:32,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 15:48:32,994 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:32,994 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2021-10-08 15:48:33,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:33,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:33,210 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:33,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:33,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1332009142, now seen corresponding path program 1 times [2021-10-08 15:48:33,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:33,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324932703] [2021-10-08 15:48:33,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:33,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:33,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:33,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:33,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324932703] [2021-10-08 15:48:33,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324932703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:33,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029173349] [2021-10-08 15:48:33,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:33,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:33,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:33,267 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:33,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-08 15:48:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:33,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 15:48:33,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:33,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029173349] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:33,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:33,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-08 15:48:33,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308123393] [2021-10-08 15:48:33,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:48:33,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:33,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:48:33,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:48:33,387 INFO L87 Difference]: Start difference. First operand 2131 states and 8180 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:33,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:33,553 INFO L93 Difference]: Finished difference Result 8499 states and 32679 transitions. [2021-10-08 15:48:33,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:48:33,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 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 5 [2021-10-08 15:48:33,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:33,719 INFO L225 Difference]: With dead ends: 8499 [2021-10-08 15:48:33,720 INFO L226 Difference]: Without dead ends: 8499 [2021-10-08 15:48:33,720 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11.9ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:48:33,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8499 states. [2021-10-08 15:48:33,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8499 to 2133. [2021-10-08 15:48:33,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2133 states, 2007 states have (on average 4.077727952167414) internal successors, (8184), 2132 states have internal predecessors, (8184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:34,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 8184 transitions. [2021-10-08 15:48:34,011 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 8184 transitions. Word has length 5 [2021-10-08 15:48:34,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:34,012 INFO L470 AbstractCegarLoop]: Abstraction has 2133 states and 8184 transitions. [2021-10-08 15:48:34,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:34,012 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 8184 transitions. [2021-10-08 15:48:34,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-08 15:48:34,013 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:34,013 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2021-10-08 15:48:34,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:34,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:34,229 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:34,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:34,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1657386804, now seen corresponding path program 2 times [2021-10-08 15:48:34,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:34,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224343853] [2021-10-08 15:48:34,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:34,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:34,283 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:34,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:34,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224343853] [2021-10-08 15:48:34,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224343853] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:34,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046683005] [2021-10-08 15:48:34,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:48:34,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:34,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:34,285 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:34,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-08 15:48:34,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 15:48:34,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:48:34,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 15:48:34,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-08 15:48:34,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046683005] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:34,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:48:34,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 7 [2021-10-08 15:48:34,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313247007] [2021-10-08 15:48:34,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:34,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:34,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:34,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:34,406 INFO L87 Difference]: Start difference. First operand 2133 states and 8184 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:34,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:34,473 INFO L93 Difference]: Finished difference Result 2132 states and 8183 transitions. [2021-10-08 15:48:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 15:48:34,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 [2021-10-08 15:48:34,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:34,524 INFO L225 Difference]: With dead ends: 2132 [2021-10-08 15:48:34,525 INFO L226 Difference]: Without dead ends: 2132 [2021-10-08 15:48:34,528 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 24.9ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:48:34,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2021-10-08 15:48:34,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2129. [2021-10-08 15:48:34,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2129 states, 2004 states have (on average 4.080339321357285) internal successors, (8177), 2128 states have internal predecessors, (8177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:34,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 8177 transitions. [2021-10-08 15:48:34,617 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 8177 transitions. Word has length 6 [2021-10-08 15:48:34,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:34,617 INFO L470 AbstractCegarLoop]: Abstraction has 2129 states and 8177 transitions. [2021-10-08 15:48:34,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:34,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 8177 transitions. [2021-10-08 15:48:34,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 15:48:34,618 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:34,618 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1] [2021-10-08 15:48:34,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-10-08 15:48:34,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:34,832 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:34,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:34,833 INFO L82 PathProgramCache]: Analyzing trace with hash 205317806, now seen corresponding path program 1 times [2021-10-08 15:48:34,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:34,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066109181] [2021-10-08 15:48:34,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:34,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:34,888 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:34,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:34,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066109181] [2021-10-08 15:48:34,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066109181] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:34,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596883223] [2021-10-08 15:48:34,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:34,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:34,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:34,895 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:34,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-08 15:48:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:34,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 15:48:34,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:35,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596883223] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:35,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:35,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-08 15:48:35,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803401637] [2021-10-08 15:48:35,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:48:35,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:35,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:48:35,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:35,028 INFO L87 Difference]: Start difference. First operand 2129 states and 8177 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 7 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) [2021-10-08 15:48:35,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:35,352 INFO L93 Difference]: Finished difference Result 10622 states and 40847 transitions. [2021-10-08 15:48:35,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 15:48:35,353 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 7 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 7 [2021-10-08 15:48:35,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:35,455 INFO L225 Difference]: With dead ends: 10622 [2021-10-08 15:48:35,456 INFO L226 Difference]: Without dead ends: 10622 [2021-10-08 15:48:35,456 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 13.7ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:35,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2021-10-08 15:48:35,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 2130. [2021-10-08 15:48:35,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2005 states have (on average 4.07930174563591) internal successors, (8179), 2129 states have internal predecessors, (8179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:35,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 8179 transitions. [2021-10-08 15:48:35,734 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 8179 transitions. Word has length 7 [2021-10-08 15:48:35,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:35,734 INFO L470 AbstractCegarLoop]: Abstraction has 2130 states and 8179 transitions. [2021-10-08 15:48:35,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 7 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) [2021-10-08 15:48:35,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 8179 transitions. [2021-10-08 15:48:35,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 15:48:35,735 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:35,735 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:35,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:35,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:35,951 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:35,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:35,952 INFO L82 PathProgramCache]: Analyzing trace with hash 2039820691, now seen corresponding path program 1 times [2021-10-08 15:48:35,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:35,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677007999] [2021-10-08 15:48:35,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:35,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:35,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:35,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:35,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677007999] [2021-10-08 15:48:35,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677007999] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:35,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:35,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:48:35,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369222203] [2021-10-08 15:48:35,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:48:35,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:35,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:48:35,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:48:35,996 INFO L87 Difference]: Start difference. First operand 2130 states and 8179 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:36,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:36,067 INFO L93 Difference]: Finished difference Result 3716 states and 14176 transitions. [2021-10-08 15:48:36,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:48:36,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-08 15:48:36,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:36,098 INFO L225 Difference]: With dead ends: 3716 [2021-10-08 15:48:36,098 INFO L226 Difference]: Without dead ends: 3716 [2021-10-08 15:48:36,098 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:48:36,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2021-10-08 15:48:36,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 2486. [2021-10-08 15:48:36,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2361 states have (on average 4.176620076238882) internal successors, (9861), 2485 states have internal predecessors, (9861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:36,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 9861 transitions. [2021-10-08 15:48:36,249 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 9861 transitions. Word has length 8 [2021-10-08 15:48:36,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:36,249 INFO L470 AbstractCegarLoop]: Abstraction has 2486 states and 9861 transitions. [2021-10-08 15:48:36,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:36,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 9861 transitions. [2021-10-08 15:48:36,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 15:48:36,250 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:36,250 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:36,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-08 15:48:36,251 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:36,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:36,252 INFO L82 PathProgramCache]: Analyzing trace with hash 2039822339, now seen corresponding path program 1 times [2021-10-08 15:48:36,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:36,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219752987] [2021-10-08 15:48:36,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:36,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:36,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:36,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219752987] [2021-10-08 15:48:36,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219752987] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:36,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:36,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:48:36,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420449490] [2021-10-08 15:48:36,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:36,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:36,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:36,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:36,312 INFO L87 Difference]: Start difference. First operand 2486 states and 9861 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:36,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:36,637 INFO L93 Difference]: Finished difference Result 6913 states and 27753 transitions. [2021-10-08 15:48:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 15:48:36,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-08 15:48:36,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:36,688 INFO L225 Difference]: With dead ends: 6913 [2021-10-08 15:48:36,688 INFO L226 Difference]: Without dead ends: 6913 [2021-10-08 15:48:36,689 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 32.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:36,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2021-10-08 15:48:36,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 3917. [2021-10-08 15:48:36,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3917 states, 3792 states have (on average 4.377373417721519) internal successors, (16599), 3916 states have internal predecessors, (16599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:36,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3917 states to 3917 states and 16599 transitions. [2021-10-08 15:48:36,914 INFO L78 Accepts]: Start accepts. Automaton has 3917 states and 16599 transitions. Word has length 8 [2021-10-08 15:48:36,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:36,915 INFO L470 AbstractCegarLoop]: Abstraction has 3917 states and 16599 transitions. [2021-10-08 15:48:36,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:36,915 INFO L276 IsEmpty]: Start isEmpty. Operand 3917 states and 16599 transitions. [2021-10-08 15:48:36,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 15:48:36,917 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:36,917 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:36,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-08 15:48:36,918 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:36,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:36,918 INFO L82 PathProgramCache]: Analyzing trace with hash 2039822241, now seen corresponding path program 1 times [2021-10-08 15:48:36,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:36,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659753289] [2021-10-08 15:48:36,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:36,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:36,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:36,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:36,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659753289] [2021-10-08 15:48:36,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659753289] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:36,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:36,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:48:36,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904671573] [2021-10-08 15:48:36,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:36,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:36,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:36,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:48:36,998 INFO L87 Difference]: Start difference. First operand 3917 states and 16599 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:37,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:37,288 INFO L93 Difference]: Finished difference Result 9598 states and 40390 transitions. [2021-10-08 15:48:37,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:48:37,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-08 15:48:37,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:37,371 INFO L225 Difference]: With dead ends: 9598 [2021-10-08 15:48:37,371 INFO L226 Difference]: Without dead ends: 9586 [2021-10-08 15:48:37,371 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:37,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9586 states. [2021-10-08 15:48:37,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9586 to 6774. [2021-10-08 15:48:37,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6774 states, 6649 states have (on average 4.490900887351481) internal successors, (29860), 6773 states have internal predecessors, (29860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:37,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6774 states to 6774 states and 29860 transitions. [2021-10-08 15:48:37,839 INFO L78 Accepts]: Start accepts. Automaton has 6774 states and 29860 transitions. Word has length 8 [2021-10-08 15:48:37,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:37,839 INFO L470 AbstractCegarLoop]: Abstraction has 6774 states and 29860 transitions. [2021-10-08 15:48:37,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:37,840 INFO L276 IsEmpty]: Start isEmpty. Operand 6774 states and 29860 transitions. [2021-10-08 15:48:37,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 15:48:37,841 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:37,841 INFO L512 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2021-10-08 15:48:37,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-08 15:48:37,841 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:37,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:37,842 INFO L82 PathProgramCache]: Analyzing trace with hash 2069887216, now seen corresponding path program 2 times [2021-10-08 15:48:37,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:37,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573505333] [2021-10-08 15:48:37,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:37,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:37,894 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:37,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:37,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573505333] [2021-10-08 15:48:37,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573505333] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:37,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734326052] [2021-10-08 15:48:37,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:48:37,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:37,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:37,897 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:37,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-08 15:48:37,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 15:48:37,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:48:37,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 15:48:37,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:38,002 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 15:48:38,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734326052] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:38,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:48:38,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2021-10-08 15:48:38,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034427667] [2021-10-08 15:48:38,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:38,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:38,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:38,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:48:38,004 INFO L87 Difference]: Start difference. First operand 6774 states and 29860 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:38,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:38,106 INFO L93 Difference]: Finished difference Result 5935 states and 26191 transitions. [2021-10-08 15:48:38,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 15:48:38,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-08 15:48:38,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:38,146 INFO L225 Difference]: With dead ends: 5935 [2021-10-08 15:48:38,147 INFO L226 Difference]: Without dead ends: 5935 [2021-10-08 15:48:38,147 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 27.5ms TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:48:38,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5935 states. [2021-10-08 15:48:38,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5935 to 5919. [2021-10-08 15:48:38,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5919 states, 5820 states have (on average 4.4946735395189) internal successors, (26159), 5918 states have internal predecessors, (26159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:38,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5919 states to 5919 states and 26159 transitions. [2021-10-08 15:48:38,700 INFO L78 Accepts]: Start accepts. Automaton has 5919 states and 26159 transitions. Word has length 8 [2021-10-08 15:48:38,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:38,700 INFO L470 AbstractCegarLoop]: Abstraction has 5919 states and 26159 transitions. [2021-10-08 15:48:38,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:38,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5919 states and 26159 transitions. [2021-10-08 15:48:38,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-08 15:48:38,705 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:38,705 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:38,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:38,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:38,907 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:38,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:38,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1092077613, now seen corresponding path program 1 times [2021-10-08 15:48:38,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:38,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042424282] [2021-10-08 15:48:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:38,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:38,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:38,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:38,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042424282] [2021-10-08 15:48:38,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042424282] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:38,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677284501] [2021-10-08 15:48:38,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:38,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:38,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:38,965 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:38,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-08 15:48:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:39,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 15:48:39,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:39,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:48:39,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677284501] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:39,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:48:39,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2021-10-08 15:48:39,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641094432] [2021-10-08 15:48:39,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:48:39,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:39,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:48:39,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:39,122 INFO L87 Difference]: Start difference. First operand 5919 states and 26159 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2021-10-08 15:48:39,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:39,204 INFO L93 Difference]: Finished difference Result 5763 states and 25421 transitions. [2021-10-08 15:48:39,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:48:39,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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 [2021-10-08 15:48:39,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:39,240 INFO L225 Difference]: With dead ends: 5763 [2021-10-08 15:48:39,241 INFO L226 Difference]: Without dead ends: 5757 [2021-10-08 15:48:39,241 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.9ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:39,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5757 states. [2021-10-08 15:48:39,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5757 to 3261. [2021-10-08 15:48:39,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 3182 states have (on average 4.326524198617222) internal successors, (13767), 3260 states have internal predecessors, (13767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:39,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 13767 transitions. [2021-10-08 15:48:39,503 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 13767 transitions. Word has length 9 [2021-10-08 15:48:39,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:39,504 INFO L470 AbstractCegarLoop]: Abstraction has 3261 states and 13767 transitions. [2021-10-08 15:48:39,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2021-10-08 15:48:39,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 13767 transitions. [2021-10-08 15:48:39,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-08 15:48:39,510 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:39,510 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:39,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-10-08 15:48:39,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-08 15:48:39,725 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:39,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:39,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1634327434, now seen corresponding path program 1 times [2021-10-08 15:48:39,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:39,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343155248] [2021-10-08 15:48:39,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:39,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:39,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:39,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343155248] [2021-10-08 15:48:39,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343155248] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:39,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528908406] [2021-10-08 15:48:39,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:39,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:39,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:39,776 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:39,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-08 15:48:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:39,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 15:48:39,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:39,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:48:39,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528908406] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:39,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:48:39,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2021-10-08 15:48:39,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898865781] [2021-10-08 15:48:39,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:39,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:39,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:39,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:39,932 INFO L87 Difference]: Start difference. First operand 3261 states and 13767 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-10-08 15:48:39,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:39,986 INFO L93 Difference]: Finished difference Result 3105 states and 13185 transitions. [2021-10-08 15:48:39,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 15:48:39,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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 [2021-10-08 15:48:39,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:40,005 INFO L225 Difference]: With dead ends: 3105 [2021-10-08 15:48:40,005 INFO L226 Difference]: Without dead ends: 3099 [2021-10-08 15:48:40,006 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.1ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:40,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2021-10-08 15:48:40,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 1853. [2021-10-08 15:48:40,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1794 states have (on average 4.1438127090301) internal successors, (7434), 1852 states have internal predecessors, (7434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:40,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 7434 transitions. [2021-10-08 15:48:40,098 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 7434 transitions. Word has length 9 [2021-10-08 15:48:40,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:40,098 INFO L470 AbstractCegarLoop]: Abstraction has 1853 states and 7434 transitions. [2021-10-08 15:48:40,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-10-08 15:48:40,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 7434 transitions. [2021-10-08 15:48:40,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 15:48:40,099 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:40,099 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:40,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:40,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:40,313 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:40,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:40,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1762678189, now seen corresponding path program 1 times [2021-10-08 15:48:40,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:40,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496871276] [2021-10-08 15:48:40,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:40,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:40,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:48:40,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:40,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496871276] [2021-10-08 15:48:40,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496871276] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:40,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:40,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:48:40,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462674780] [2021-10-08 15:48:40,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:40,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:40,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:40,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:40,388 INFO L87 Difference]: Start difference. First operand 1853 states and 7434 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:40,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:40,553 INFO L93 Difference]: Finished difference Result 3968 states and 14696 transitions. [2021-10-08 15:48:40,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 15:48:40,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-10-08 15:48:40,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:40,578 INFO L225 Difference]: With dead ends: 3968 [2021-10-08 15:48:40,578 INFO L226 Difference]: Without dead ends: 3960 [2021-10-08 15:48:40,579 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.5ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:40,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2021-10-08 15:48:40,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 2165. [2021-10-08 15:48:40,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2165 states, 2106 states have (on average 4.148622981956315) internal successors, (8737), 2164 states have internal predecessors, (8737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:40,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 8737 transitions. [2021-10-08 15:48:40,749 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 8737 transitions. Word has length 10 [2021-10-08 15:48:40,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:40,749 INFO L470 AbstractCegarLoop]: Abstraction has 2165 states and 8737 transitions. [2021-10-08 15:48:40,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:40,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 8737 transitions. [2021-10-08 15:48:40,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 15:48:40,750 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:40,750 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:40,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-08 15:48:40,751 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:40,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:40,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1806279103, now seen corresponding path program 1 times [2021-10-08 15:48:40,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:40,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173906055] [2021-10-08 15:48:40,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:40,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:40,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:40,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:40,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173906055] [2021-10-08 15:48:40,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173906055] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:40,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:40,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:48:40,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145140344] [2021-10-08 15:48:40,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:40,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:40,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:40,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:48:40,793 INFO L87 Difference]: Start difference. First operand 2165 states and 8737 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:40,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:40,947 INFO L93 Difference]: Finished difference Result 5905 states and 24117 transitions. [2021-10-08 15:48:40,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:48:40,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-10-08 15:48:40,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:40,983 INFO L225 Difference]: With dead ends: 5905 [2021-10-08 15:48:40,983 INFO L226 Difference]: Without dead ends: 5905 [2021-10-08 15:48:40,984 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:40,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5905 states. [2021-10-08 15:48:41,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5905 to 3361. [2021-10-08 15:48:41,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3361 states, 3302 states have (on average 4.38915808600848) internal successors, (14493), 3360 states have internal predecessors, (14493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 14493 transitions. [2021-10-08 15:48:41,248 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 14493 transitions. Word has length 10 [2021-10-08 15:48:41,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:41,250 INFO L470 AbstractCegarLoop]: Abstraction has 3361 states and 14493 transitions. [2021-10-08 15:48:41,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:41,250 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 14493 transitions. [2021-10-08 15:48:41,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 15:48:41,251 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:41,251 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:41,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-08 15:48:41,251 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:41,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:41,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1806279217, now seen corresponding path program 1 times [2021-10-08 15:48:41,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:41,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907859893] [2021-10-08 15:48:41,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:41,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:41,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:41,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:41,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907859893] [2021-10-08 15:48:41,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907859893] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:41,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:41,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:48:41,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674563240] [2021-10-08 15:48:41,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:41,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:41,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:41,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:41,302 INFO L87 Difference]: Start difference. First operand 3361 states and 14493 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:41,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:41,497 INFO L93 Difference]: Finished difference Result 6521 states and 28021 transitions. [2021-10-08 15:48:41,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 15:48:41,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-10-08 15:48:41,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:41,540 INFO L225 Difference]: With dead ends: 6521 [2021-10-08 15:48:41,541 INFO L226 Difference]: Without dead ends: 6479 [2021-10-08 15:48:41,541 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 27.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:41,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6479 states. [2021-10-08 15:48:41,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6479 to 5707. [2021-10-08 15:48:41,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5707 states, 5648 states have (on average 4.527797450424929) internal successors, (25573), 5706 states have internal predecessors, (25573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:41,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5707 states to 5707 states and 25573 transitions. [2021-10-08 15:48:41,932 INFO L78 Accepts]: Start accepts. Automaton has 5707 states and 25573 transitions. Word has length 10 [2021-10-08 15:48:41,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:41,933 INFO L470 AbstractCegarLoop]: Abstraction has 5707 states and 25573 transitions. [2021-10-08 15:48:41,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:41,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5707 states and 25573 transitions. [2021-10-08 15:48:41,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 15:48:41,934 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:41,934 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:41,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-08 15:48:41,935 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:41,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:41,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1806274504, now seen corresponding path program 1 times [2021-10-08 15:48:41,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:41,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388933621] [2021-10-08 15:48:41,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:41,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:41,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:41,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:41,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388933621] [2021-10-08 15:48:41,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388933621] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:41,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:41,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:48:41,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446095178] [2021-10-08 15:48:41,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:48:41,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:41,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:48:41,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:48:41,972 INFO L87 Difference]: Start difference. First operand 5707 states and 25573 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:42,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:42,105 INFO L93 Difference]: Finished difference Result 10123 states and 44429 transitions. [2021-10-08 15:48:42,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:48:42,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-10-08 15:48:42,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:42,170 INFO L225 Difference]: With dead ends: 10123 [2021-10-08 15:48:42,170 INFO L226 Difference]: Without dead ends: 10123 [2021-10-08 15:48:42,171 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:48:42,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10123 states. [2021-10-08 15:48:42,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10123 to 7259. [2021-10-08 15:48:42,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7259 states, 7200 states have (on average 4.6056944444444445) internal successors, (33161), 7258 states have internal predecessors, (33161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:42,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7259 states to 7259 states and 33161 transitions. [2021-10-08 15:48:42,660 INFO L78 Accepts]: Start accepts. Automaton has 7259 states and 33161 transitions. Word has length 10 [2021-10-08 15:48:42,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:42,660 INFO L470 AbstractCegarLoop]: Abstraction has 7259 states and 33161 transitions. [2021-10-08 15:48:42,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:42,661 INFO L276 IsEmpty]: Start isEmpty. Operand 7259 states and 33161 transitions. [2021-10-08 15:48:42,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:48:42,662 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:42,662 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:42,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-08 15:48:42,663 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:42,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:42,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1556664169, now seen corresponding path program 1 times [2021-10-08 15:48:42,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:42,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231730982] [2021-10-08 15:48:42,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:42,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:42,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:42,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231730982] [2021-10-08 15:48:42,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231730982] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:42,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125075743] [2021-10-08 15:48:42,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:42,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:42,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:42,711 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:42,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-08 15:48:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:42,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 15:48:42,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:43,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:48:43,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125075743] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:43,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:48:43,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2021-10-08 15:48:43,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131789209] [2021-10-08 15:48:43,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:43,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:43,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:43,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:43,014 INFO L87 Difference]: Start difference. First operand 7259 states and 33161 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:43,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:43,117 INFO L93 Difference]: Finished difference Result 7065 states and 32209 transitions. [2021-10-08 15:48:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 15:48:43,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-08 15:48:43,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:43,159 INFO L225 Difference]: With dead ends: 7065 [2021-10-08 15:48:43,159 INFO L226 Difference]: Without dead ends: 7023 [2021-10-08 15:48:43,159 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.8ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:43,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7023 states. [2021-10-08 15:48:43,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7023 to 3899. [2021-10-08 15:48:43,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3899 states, 3852 states have (on average 4.435877466251298) internal successors, (17087), 3898 states have internal predecessors, (17087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:43,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 17087 transitions. [2021-10-08 15:48:43,463 INFO L78 Accepts]: Start accepts. Automaton has 3899 states and 17087 transitions. Word has length 11 [2021-10-08 15:48:43,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:43,466 INFO L470 AbstractCegarLoop]: Abstraction has 3899 states and 17087 transitions. [2021-10-08 15:48:43,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:43,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3899 states and 17087 transitions. [2021-10-08 15:48:43,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:48:43,468 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:43,468 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:43,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:43,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-08 15:48:43,682 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:43,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:43,683 INFO L82 PathProgramCache]: Analyzing trace with hash 161590847, now seen corresponding path program 1 times [2021-10-08 15:48:43,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:43,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298031223] [2021-10-08 15:48:43,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:43,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:43,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:43,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298031223] [2021-10-08 15:48:43,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298031223] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:43,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:43,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:48:43,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91738870] [2021-10-08 15:48:43,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:43,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:43,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:43,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:43,734 INFO L87 Difference]: Start difference. First operand 3899 states and 17087 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:43,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:43,878 INFO L93 Difference]: Finished difference Result 4167 states and 17448 transitions. [2021-10-08 15:48:43,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 15:48:43,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-08 15:48:43,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:43,895 INFO L225 Difference]: With dead ends: 4167 [2021-10-08 15:48:43,895 INFO L226 Difference]: Without dead ends: 4167 [2021-10-08 15:48:43,895 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:43,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4167 states. [2021-10-08 15:48:44,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4167 to 3925. [2021-10-08 15:48:44,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3925 states, 3878 states have (on average 4.387570912841671) internal successors, (17015), 3924 states have internal predecessors, (17015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:44,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3925 states to 3925 states and 17015 transitions. [2021-10-08 15:48:44,074 INFO L78 Accepts]: Start accepts. Automaton has 3925 states and 17015 transitions. Word has length 11 [2021-10-08 15:48:44,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:44,075 INFO L470 AbstractCegarLoop]: Abstraction has 3925 states and 17015 transitions. [2021-10-08 15:48:44,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:44,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3925 states and 17015 transitions. [2021-10-08 15:48:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:48:44,076 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:44,076 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:44,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-08 15:48:44,077 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:44,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:44,077 INFO L82 PathProgramCache]: Analyzing trace with hash 161590817, now seen corresponding path program 1 times [2021-10-08 15:48:44,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:44,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726381969] [2021-10-08 15:48:44,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:44,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:44,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:44,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726381969] [2021-10-08 15:48:44,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726381969] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:44,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:44,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:48:44,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798767631] [2021-10-08 15:48:44,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:48:44,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:44,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:48:44,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:48:44,111 INFO L87 Difference]: Start difference. First operand 3925 states and 17015 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:44,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:44,243 INFO L93 Difference]: Finished difference Result 5977 states and 25848 transitions. [2021-10-08 15:48:44,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:48:44,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-08 15:48:44,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:44,275 INFO L225 Difference]: With dead ends: 5977 [2021-10-08 15:48:44,275 INFO L226 Difference]: Without dead ends: 5977 [2021-10-08 15:48:44,275 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:48:44,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5977 states. [2021-10-08 15:48:44,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5977 to 4573. [2021-10-08 15:48:44,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4573 states, 4526 states have (on average 4.6990720282810425) internal successors, (21268), 4572 states have internal predecessors, (21268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:44,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 21268 transitions. [2021-10-08 15:48:44,474 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 21268 transitions. Word has length 11 [2021-10-08 15:48:44,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:44,474 INFO L470 AbstractCegarLoop]: Abstraction has 4573 states and 21268 transitions. [2021-10-08 15:48:44,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:44,475 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 21268 transitions. [2021-10-08 15:48:44,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:48:44,476 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:44,476 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:44,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-08 15:48:44,477 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:44,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:44,477 INFO L82 PathProgramCache]: Analyzing trace with hash 161590849, now seen corresponding path program 1 times [2021-10-08 15:48:44,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:44,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386456225] [2021-10-08 15:48:44,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:44,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:44,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:44,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:44,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386456225] [2021-10-08 15:48:44,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386456225] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:44,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:44,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:48:44,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377130347] [2021-10-08 15:48:44,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:44,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:44,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:44,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:44,534 INFO L87 Difference]: Start difference. First operand 4573 states and 21268 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:44,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:44,691 INFO L93 Difference]: Finished difference Result 5364 states and 23872 transitions. [2021-10-08 15:48:44,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 15:48:44,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-08 15:48:44,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:44,724 INFO L225 Difference]: With dead ends: 5364 [2021-10-08 15:48:44,724 INFO L226 Difference]: Without dead ends: 5364 [2021-10-08 15:48:44,725 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.5ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:44,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5364 states. [2021-10-08 15:48:44,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5364 to 5019. [2021-10-08 15:48:44,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5019 states, 4972 states have (on average 4.645615446500402) internal successors, (23098), 5018 states have internal predecessors, (23098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:44,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5019 states to 5019 states and 23098 transitions. [2021-10-08 15:48:44,969 INFO L78 Accepts]: Start accepts. Automaton has 5019 states and 23098 transitions. Word has length 11 [2021-10-08 15:48:44,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:44,970 INFO L470 AbstractCegarLoop]: Abstraction has 5019 states and 23098 transitions. [2021-10-08 15:48:44,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:44,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5019 states and 23098 transitions. [2021-10-08 15:48:44,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:48:44,972 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:44,973 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:44,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-08 15:48:44,973 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:44,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:44,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1913433937, now seen corresponding path program 1 times [2021-10-08 15:48:44,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:44,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799367765] [2021-10-08 15:48:44,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:44,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:45,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:45,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:45,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799367765] [2021-10-08 15:48:45,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799367765] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:45,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889072418] [2021-10-08 15:48:45,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:45,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:45,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:45,042 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:45,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-08 15:48:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:45,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 15:48:45,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:48:45,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889072418] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:45,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:48:45,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 7 [2021-10-08 15:48:45,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542851663] [2021-10-08 15:48:45,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:45,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:45,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:45,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:45,228 INFO L87 Difference]: Start difference. First operand 5019 states and 23098 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:45,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:45,314 INFO L93 Difference]: Finished difference Result 4779 states and 22069 transitions. [2021-10-08 15:48:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 15:48:45,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-08 15:48:45,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:45,344 INFO L225 Difference]: With dead ends: 4779 [2021-10-08 15:48:45,345 INFO L226 Difference]: Without dead ends: 4737 [2021-10-08 15:48:45,345 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 25.9ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:45,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4737 states. [2021-10-08 15:48:45,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4737 to 4139. [2021-10-08 15:48:45,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 4104 states have (on average 4.765350877192983) internal successors, (19557), 4138 states have internal predecessors, (19557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:45,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 19557 transitions. [2021-10-08 15:48:45,518 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 19557 transitions. Word has length 11 [2021-10-08 15:48:45,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:45,519 INFO L470 AbstractCegarLoop]: Abstraction has 4139 states and 19557 transitions. [2021-10-08 15:48:45,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:45,519 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 19557 transitions. [2021-10-08 15:48:45,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:48:45,521 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:45,521 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:45,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:45,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:45,736 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:45,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:45,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1367957826, now seen corresponding path program 1 times [2021-10-08 15:48:45,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:45,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622400759] [2021-10-08 15:48:45,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:45,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:45,786 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 15:48:45,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:45,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622400759] [2021-10-08 15:48:45,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622400759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:45,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:45,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:48:45,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729598678] [2021-10-08 15:48:45,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:45,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:45,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:45,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:45,788 INFO L87 Difference]: Start difference. First operand 4139 states and 19557 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:45,923 INFO L93 Difference]: Finished difference Result 7731 states and 34060 transitions. [2021-10-08 15:48:45,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 15:48:45,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-08 15:48:45,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:45,957 INFO L225 Difference]: With dead ends: 7731 [2021-10-08 15:48:45,957 INFO L226 Difference]: Without dead ends: 7699 [2021-10-08 15:48:45,957 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.5ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:45,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7699 states. [2021-10-08 15:48:46,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7699 to 4548. [2021-10-08 15:48:46,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4548 states, 4513 states have (on average 4.818302681143364) internal successors, (21745), 4547 states have internal predecessors, (21745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:46,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 21745 transitions. [2021-10-08 15:48:46,206 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 21745 transitions. Word has length 11 [2021-10-08 15:48:46,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:46,207 INFO L470 AbstractCegarLoop]: Abstraction has 4548 states and 21745 transitions. [2021-10-08 15:48:46,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:46,207 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 21745 transitions. [2021-10-08 15:48:46,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:48:46,209 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:46,209 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:46,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-08 15:48:46,209 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:46,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:46,210 INFO L82 PathProgramCache]: Analyzing trace with hash 714349385, now seen corresponding path program 1 times [2021-10-08 15:48:46,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:46,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924695653] [2021-10-08 15:48:46,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:46,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:46,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:46,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:46,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924695653] [2021-10-08 15:48:46,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924695653] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:46,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:46,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:48:46,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140923614] [2021-10-08 15:48:46,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:48:46,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:46,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:48:46,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:48:46,246 INFO L87 Difference]: Start difference. First operand 4548 states and 21745 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:46,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:46,310 INFO L93 Difference]: Finished difference Result 4490 states and 20667 transitions. [2021-10-08 15:48:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:48:46,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-08 15:48:46,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:46,338 INFO L225 Difference]: With dead ends: 4490 [2021-10-08 15:48:46,338 INFO L226 Difference]: Without dead ends: 4332 [2021-10-08 15:48:46,338 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:48:46,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2021-10-08 15:48:46,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 3278. [2021-10-08 15:48:46,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 3252 states have (on average 4.404059040590406) internal successors, (14322), 3277 states have internal predecessors, (14322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:46,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 14322 transitions. [2021-10-08 15:48:46,480 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 14322 transitions. Word has length 12 [2021-10-08 15:48:46,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:46,481 INFO L470 AbstractCegarLoop]: Abstraction has 3278 states and 14322 transitions. [2021-10-08 15:48:46,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:46,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 14322 transitions. [2021-10-08 15:48:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:48:46,483 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:46,483 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:46,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-08 15:48:46,484 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:46,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:46,484 INFO L82 PathProgramCache]: Analyzing trace with hash 663110683, now seen corresponding path program 1 times [2021-10-08 15:48:46,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:46,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225548769] [2021-10-08 15:48:46,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:46,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:46,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:46,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:46,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225548769] [2021-10-08 15:48:46,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225548769] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:46,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:46,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:48:46,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218356737] [2021-10-08 15:48:46,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:48:46,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:46,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:48:46,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:48:46,517 INFO L87 Difference]: Start difference. First operand 3278 states and 14322 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:46,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:46,560 INFO L93 Difference]: Finished difference Result 3252 states and 13864 transitions. [2021-10-08 15:48:46,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:48:46,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-08 15:48:46,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:46,579 INFO L225 Difference]: With dead ends: 3252 [2021-10-08 15:48:46,579 INFO L226 Difference]: Without dead ends: 3252 [2021-10-08 15:48:46,580 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:48:46,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3252 states. [2021-10-08 15:48:46,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3252 to 2974. [2021-10-08 15:48:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2957 states have (on average 4.413594859655055) internal successors, (13051), 2973 states have internal predecessors, (13051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:46,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 13051 transitions. [2021-10-08 15:48:46,689 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 13051 transitions. Word has length 12 [2021-10-08 15:48:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:46,690 INFO L470 AbstractCegarLoop]: Abstraction has 2974 states and 13051 transitions. [2021-10-08 15:48:46,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:46,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 13051 transitions. [2021-10-08 15:48:46,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:48:46,692 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:46,692 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:46,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-08 15:48:46,693 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:46,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:46,693 INFO L82 PathProgramCache]: Analyzing trace with hash 663110685, now seen corresponding path program 1 times [2021-10-08 15:48:46,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:46,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714569673] [2021-10-08 15:48:46,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:46,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:46,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:48:46,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:46,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714569673] [2021-10-08 15:48:46,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714569673] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:46,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:46,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:48:46,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302155343] [2021-10-08 15:48:46,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:46,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:46,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:46,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:46,742 INFO L87 Difference]: Start difference. First operand 2974 states and 13051 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:46,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:46,850 INFO L93 Difference]: Finished difference Result 3425 states and 14029 transitions. [2021-10-08 15:48:46,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 15:48:46,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-08 15:48:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:46,862 INFO L225 Difference]: With dead ends: 3425 [2021-10-08 15:48:46,862 INFO L226 Difference]: Without dead ends: 3320 [2021-10-08 15:48:46,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.7ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:46,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3320 states. [2021-10-08 15:48:46,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3320 to 2978. [2021-10-08 15:48:46,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 2961 states have (on average 4.306990881458966) internal successors, (12753), 2977 states have internal predecessors, (12753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:46,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 12753 transitions. [2021-10-08 15:48:46,945 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 12753 transitions. Word has length 12 [2021-10-08 15:48:46,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:46,945 INFO L470 AbstractCegarLoop]: Abstraction has 2978 states and 12753 transitions. [2021-10-08 15:48:46,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:46,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 12753 transitions. [2021-10-08 15:48:46,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:48:46,946 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:46,947 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:46,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-08 15:48:46,947 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:46,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:46,947 INFO L82 PathProgramCache]: Analyzing trace with hash 814600065, now seen corresponding path program 1 times [2021-10-08 15:48:46,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:46,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023326712] [2021-10-08 15:48:46,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:46,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:47,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:47,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023326712] [2021-10-08 15:48:47,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023326712] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:47,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330444544] [2021-10-08 15:48:47,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:47,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:47,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:47,009 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:47,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-08 15:48:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:47,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 15:48:47,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:48:47,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330444544] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:47,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:48:47,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2021-10-08 15:48:47,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435267761] [2021-10-08 15:48:47,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:48:47,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:47,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:48:47,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:47,199 INFO L87 Difference]: Start difference. First operand 2978 states and 12753 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:47,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:47,241 INFO L93 Difference]: Finished difference Result 2676 states and 11399 transitions. [2021-10-08 15:48:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:48:47,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-08 15:48:47,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:47,254 INFO L225 Difference]: With dead ends: 2676 [2021-10-08 15:48:47,254 INFO L226 Difference]: Without dead ends: 2493 [2021-10-08 15:48:47,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 27.9ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:47,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2021-10-08 15:48:47,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 1497. [2021-10-08 15:48:47,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 1486 states have (on average 4.10699865410498) internal successors, (6103), 1496 states have internal predecessors, (6103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:47,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 6103 transitions. [2021-10-08 15:48:47,319 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 6103 transitions. Word has length 12 [2021-10-08 15:48:47,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:47,319 INFO L470 AbstractCegarLoop]: Abstraction has 1497 states and 6103 transitions. [2021-10-08 15:48:47,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:47,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 6103 transitions. [2021-10-08 15:48:47,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:48:47,322 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:47,322 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:47,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:47,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-08 15:48:47,537 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:47,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:47,538 INFO L82 PathProgramCache]: Analyzing trace with hash -2133333406, now seen corresponding path program 1 times [2021-10-08 15:48:47,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:47,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975238443] [2021-10-08 15:48:47,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:47,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:47,594 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:48:47,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:47,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975238443] [2021-10-08 15:48:47,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975238443] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:47,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101962848] [2021-10-08 15:48:47,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:47,596 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:47,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:47,597 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:47,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-08 15:48:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:47,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-08 15:48:47,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:48:47,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101962848] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:47,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:47,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2021-10-08 15:48:47,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092293708] [2021-10-08 15:48:47,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-08 15:48:47,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:47,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-08 15:48:47,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-08 15:48:47,806 INFO L87 Difference]: Start difference. First operand 1497 states and 6103 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:48,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:48,555 INFO L93 Difference]: Finished difference Result 6841 states and 25444 transitions. [2021-10-08 15:48:48,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-08 15:48:48,556 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 12 [2021-10-08 15:48:48,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:48,590 INFO L225 Difference]: With dead ends: 6841 [2021-10-08 15:48:48,591 INFO L226 Difference]: Without dead ends: 6745 [2021-10-08 15:48:48,591 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 308.3ms TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2021-10-08 15:48:48,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6745 states. [2021-10-08 15:48:48,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6745 to 1851. [2021-10-08 15:48:48,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1851 states, 1840 states have (on average 4.217391304347826) internal successors, (7760), 1850 states have internal predecessors, (7760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 7760 transitions. [2021-10-08 15:48:48,684 INFO L78 Accepts]: Start accepts. Automaton has 1851 states and 7760 transitions. Word has length 12 [2021-10-08 15:48:48,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:48,684 INFO L470 AbstractCegarLoop]: Abstraction has 1851 states and 7760 transitions. [2021-10-08 15:48:48,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:48,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1851 states and 7760 transitions. [2021-10-08 15:48:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:48:48,686 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:48,686 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:48,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:48,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-08 15:48:48,892 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:48,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:48,893 INFO L82 PathProgramCache]: Analyzing trace with hash 810161484, now seen corresponding path program 1 times [2021-10-08 15:48:48,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:48,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938518044] [2021-10-08 15:48:48,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:48,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:48,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:48,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:48,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938518044] [2021-10-08 15:48:48,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938518044] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:48,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482470125] [2021-10-08 15:48:48,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:48,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:48,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:48,946 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:48,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-08 15:48:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:49,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 15:48:49,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:49,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:48:49,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482470125] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:49,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:48:49,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2021-10-08 15:48:49,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891230785] [2021-10-08 15:48:49,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:49,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:49,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:49,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:49,146 INFO L87 Difference]: Start difference. First operand 1851 states and 7760 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:49,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:49,181 INFO L93 Difference]: Finished difference Result 1505 states and 6284 transitions. [2021-10-08 15:48:49,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 15:48:49,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-08 15:48:49,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:49,188 INFO L225 Difference]: With dead ends: 1505 [2021-10-08 15:48:49,188 INFO L226 Difference]: Without dead ends: 1215 [2021-10-08 15:48:49,188 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 25.8ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:48:49,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2021-10-08 15:48:49,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1077. [2021-10-08 15:48:49,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1072 states have (on average 4.13339552238806) internal successors, (4431), 1076 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:49,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 4431 transitions. [2021-10-08 15:48:49,228 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 4431 transitions. Word has length 12 [2021-10-08 15:48:49,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:49,228 INFO L470 AbstractCegarLoop]: Abstraction has 1077 states and 4431 transitions. [2021-10-08 15:48:49,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:49,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 4431 transitions. [2021-10-08 15:48:49,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 15:48:49,230 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:49,230 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:49,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:49,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-08 15:48:49,444 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:49,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:49,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1301327687, now seen corresponding path program 1 times [2021-10-08 15:48:49,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:49,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079485592] [2021-10-08 15:48:49,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:49,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 15:48:49,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:49,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079485592] [2021-10-08 15:48:49,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079485592] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:49,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:49,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:48:49,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794837931] [2021-10-08 15:48:49,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:49,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:49,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:49,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:49,499 INFO L87 Difference]: Start difference. First operand 1077 states and 4431 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:49,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:49,577 INFO L93 Difference]: Finished difference Result 1551 states and 6091 transitions. [2021-10-08 15:48:49,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:48:49,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 [2021-10-08 15:48:49,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:49,584 INFO L225 Difference]: With dead ends: 1551 [2021-10-08 15:48:49,585 INFO L226 Difference]: Without dead ends: 1375 [2021-10-08 15:48:49,585 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.6ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:49,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2021-10-08 15:48:49,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1207. [2021-10-08 15:48:49,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1202 states have (on average 4.098169717138103) internal successors, (4926), 1206 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:49,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 4926 transitions. [2021-10-08 15:48:49,632 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 4926 transitions. Word has length 13 [2021-10-08 15:48:49,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:49,633 INFO L470 AbstractCegarLoop]: Abstraction has 1207 states and 4926 transitions. [2021-10-08 15:48:49,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 4926 transitions. [2021-10-08 15:48:49,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 15:48:49,634 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:49,635 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:49,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-08 15:48:49,635 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:49,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:49,636 INFO L82 PathProgramCache]: Analyzing trace with hash 2036417841, now seen corresponding path program 1 times [2021-10-08 15:48:49,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:49,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960159654] [2021-10-08 15:48:49,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:49,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:49,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:48:49,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:49,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960159654] [2021-10-08 15:48:49,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960159654] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:49,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712872829] [2021-10-08 15:48:49,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:49,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:49,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:49,701 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:49,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-08 15:48:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:49,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-08 15:48:49,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:49,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 15:48:49,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712872829] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:49,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:49,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-10-08 15:48:49,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337002795] [2021-10-08 15:48:49,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-08 15:48:49,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:49,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-08 15:48:49,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-08 15:48:49,941 INFO L87 Difference]: Start difference. First operand 1207 states and 4926 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:50,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:50,467 INFO L93 Difference]: Finished difference Result 3013 states and 11433 transitions. [2021-10-08 15:48:50,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-08 15:48:50,467 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-08 15:48:50,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:50,475 INFO L225 Difference]: With dead ends: 3013 [2021-10-08 15:48:50,475 INFO L226 Difference]: Without dead ends: 2011 [2021-10-08 15:48:50,475 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 201.4ms TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2021-10-08 15:48:50,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2021-10-08 15:48:50,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1395. [2021-10-08 15:48:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1390 states have (on average 4.127338129496403) internal successors, (5737), 1394 states have internal predecessors, (5737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:50,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 5737 transitions. [2021-10-08 15:48:50,515 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 5737 transitions. Word has length 14 [2021-10-08 15:48:50,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:50,515 INFO L470 AbstractCegarLoop]: Abstraction has 1395 states and 5737 transitions. [2021-10-08 15:48:50,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:50,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 5737 transitions. [2021-10-08 15:48:50,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 15:48:50,516 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:50,516 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:50,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:50,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,16 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:50,719 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:50,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:50,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1501910413, now seen corresponding path program 2 times [2021-10-08 15:48:50,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:50,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029607389] [2021-10-08 15:48:50,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:50,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:50,759 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-08 15:48:50,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:50,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029607389] [2021-10-08 15:48:50,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029607389] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:50,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229261263] [2021-10-08 15:48:50,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:48:50,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:50,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:50,761 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:50,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-08 15:48:50,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 15:48:50,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:48:50,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 15:48:50,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-08 15:48:50,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229261263] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:50,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:50,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2] total 5 [2021-10-08 15:48:50,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054935709] [2021-10-08 15:48:50,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:48:50,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:50,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:48:50,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:48:50,933 INFO L87 Difference]: Start difference. First operand 1395 states and 5737 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:51,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:51,027 INFO L93 Difference]: Finished difference Result 2305 states and 9203 transitions. [2021-10-08 15:48:51,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 15:48:51,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-08 15:48:51,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:51,037 INFO L225 Difference]: With dead ends: 2305 [2021-10-08 15:48:51,037 INFO L226 Difference]: Without dead ends: 2305 [2021-10-08 15:48:51,037 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 22.3ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:48:51,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2021-10-08 15:48:51,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 1269. [2021-10-08 15:48:51,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1266 states have (on average 4.127962085308057) internal successors, (5226), 1268 states have internal predecessors, (5226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:51,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 5226 transitions. [2021-10-08 15:48:51,078 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 5226 transitions. Word has length 14 [2021-10-08 15:48:51,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:51,078 INFO L470 AbstractCegarLoop]: Abstraction has 1269 states and 5226 transitions. [2021-10-08 15:48:51,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:51,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 5226 transitions. [2021-10-08 15:48:51,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 15:48:51,079 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:51,079 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:51,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:51,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-10-08 15:48:51,280 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:51,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:51,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1501910414, now seen corresponding path program 1 times [2021-10-08 15:48:51,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:51,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777945283] [2021-10-08 15:48:51,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:51,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:51,320 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-08 15:48:51,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:51,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777945283] [2021-10-08 15:48:51,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777945283] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:51,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790457569] [2021-10-08 15:48:51,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:51,321 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:51,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:51,322 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:51,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-08 15:48:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:51,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 15:48:51,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:51,480 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-08 15:48:51,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790457569] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:51,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:48:51,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-08 15:48:51,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826449834] [2021-10-08 15:48:51,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:51,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:51,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:51,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:51,482 INFO L87 Difference]: Start difference. First operand 1269 states and 5226 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:51,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:51,515 INFO L93 Difference]: Finished difference Result 1515 states and 5923 transitions. [2021-10-08 15:48:51,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 15:48:51,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-08 15:48:51,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:51,521 INFO L225 Difference]: With dead ends: 1515 [2021-10-08 15:48:51,521 INFO L226 Difference]: Without dead ends: 1133 [2021-10-08 15:48:51,522 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:51,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2021-10-08 15:48:51,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 661. [2021-10-08 15:48:51,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 660 states have (on average 3.9242424242424243) internal successors, (2590), 660 states have internal predecessors, (2590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:51,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 2590 transitions. [2021-10-08 15:48:51,550 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 2590 transitions. Word has length 14 [2021-10-08 15:48:51,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:51,550 INFO L470 AbstractCegarLoop]: Abstraction has 661 states and 2590 transitions. [2021-10-08 15:48:51,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:51,551 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 2590 transitions. [2021-10-08 15:48:51,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 15:48:51,552 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:51,552 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:51,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:51,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,18 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:51,766 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2021-10-08 15:48:51,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:51,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1643103971, now seen corresponding path program 2 times [2021-10-08 15:48:51,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:51,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34251493] [2021-10-08 15:48:51,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:51,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:51,805 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-08 15:48:51,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:51,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34251493] [2021-10-08 15:48:51,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34251493] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:51,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860013694] [2021-10-08 15:48:51,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 15:48:51,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:51,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:51,807 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:48:51,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-08 15:48:51,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 15:48:51,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 15:48:51,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 15:48:51,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:48:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-08 15:48:51,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860013694] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:48:51,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 15:48:51,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2] total 5 [2021-10-08 15:48:51,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454523439] [2021-10-08 15:48:51,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:48:51,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:51,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:48:51,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:48:51,986 INFO L87 Difference]: Start difference. First operand 661 states and 2590 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:52,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:52,049 INFO L93 Difference]: Finished difference Result 865 states and 3422 transitions. [2021-10-08 15:48:52,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 15:48:52,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 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 16 [2021-10-08 15:48:52,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:52,050 INFO L225 Difference]: With dead ends: 865 [2021-10-08 15:48:52,050 INFO L226 Difference]: Without dead ends: 0 [2021-10-08 15:48:52,051 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 26.8ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:48:52,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-08 15:48:52,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-08 15:48:52,051 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) [2021-10-08 15:48:52,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-08 15:48:52,051 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-10-08 15:48:52,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:52,052 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-08 15:48:52,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:48:52,052 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-08 15:48:52,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-08 15:48:52,055 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,056 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,056 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,056 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,056 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,057 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,057 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,057 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,057 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,057 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,057 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,058 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,058 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,058 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,058 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,059 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,059 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,059 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,059 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 15:48:52,059 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 15:48:52,059 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-08 15:48:52,060 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,060 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,060 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,060 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,060 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,062 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,062 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:48:52,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-08 15:48:52,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,19 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:48:52,284 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 15:48:52,284 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 15:48:52,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 03:48:52 BasicIcfg [2021-10-08 15:48:52,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 15:48:52,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-08 15:48:52,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-08 15:48:52,288 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-08 15:48:52,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:48:15" (3/4) ... [2021-10-08 15:48:52,292 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-08 15:48:52,302 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-08 15:48:52,302 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-08 15:48:52,302 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-08 15:48:52,310 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2021-10-08 15:48:52,311 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-08 15:48:52,311 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 15:48:52,312 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 15:48:52,368 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/chl-word-trans.wvr.c-witness.graphml [2021-10-08 15:48:52,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-08 15:48:52,370 INFO L168 Benchmark]: Toolchain (without parser) took 38730.59 ms. Allocated memory was 161.5 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 136.6 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.6 GB. Max. memory is 8.0 GB. [2021-10-08 15:48:52,370 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 161.5 MB. Free memory is still 132.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 15:48:52,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.84 ms. Allocated memory is still 161.5 MB. Free memory was 136.1 MB in the beginning and 124.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-08 15:48:52,371 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.97 ms. Allocated memory is still 161.5 MB. Free memory was 124.4 MB in the beginning and 122.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 15:48:52,372 INFO L168 Benchmark]: Boogie Preprocessor took 53.28 ms. Allocated memory is still 161.5 MB. Free memory was 122.3 MB in the beginning and 120.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 15:48:52,372 INFO L168 Benchmark]: RCFGBuilder took 1001.02 ms. Allocated memory is still 161.5 MB. Free memory was 120.4 MB in the beginning and 131.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 8.0 GB. [2021-10-08 15:48:52,372 INFO L168 Benchmark]: TraceAbstraction took 37191.67 ms. Allocated memory was 161.5 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 131.0 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.6 GB. Max. memory is 8.0 GB. [2021-10-08 15:48:52,373 INFO L168 Benchmark]: Witness Printer took 80.42 ms. Allocated memory is still 3.1 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-10-08 15:48:52,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 161.5 MB. Free memory is still 132.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 337.84 ms. Allocated memory is still 161.5 MB. Free memory was 136.1 MB in the beginning and 124.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.97 ms. Allocated memory is still 161.5 MB. Free memory was 124.4 MB in the beginning and 122.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.28 ms. Allocated memory is still 161.5 MB. Free memory was 122.3 MB in the beginning and 120.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1001.02 ms. Allocated memory is still 161.5 MB. Free memory was 120.4 MB in the beginning and 131.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 37191.67 ms. Allocated memory was 161.5 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 131.0 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.6 GB. Max. memory is 8.0 GB. * Witness Printer took 80.42 ms. Allocated memory is still 3.1 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14253.1ms, 319 PlacesBefore, 61 PlacesAfterwards, 343 TransitionsBefore, 62 TransitionsAfterwards, 17280 CoEnabledTransitionPairs, 8 FixpointIterations, 165 TrivialSequentialCompositions, 137 ConcurrentSequentialCompositions, 37 TrivialYvCompositions, 28 ConcurrentYvCompositions, 23 ChoiceCompositions, 390 TotalNumberOfCompositions, 22709 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15586, positive: 15374, positive conditional: 0, positive unconditional: 15374, negative: 212, negative conditional: 0, negative unconditional: 212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11525, positive: 11469, positive conditional: 0, positive unconditional: 11469, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11525, positive: 11469, positive conditional: 0, positive unconditional: 11469, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 155, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15586, positive: 3905, positive conditional: 0, positive unconditional: 3905, negative: 156, negative conditional: 0, negative unconditional: 156, unknown: 11525, unknown conditional: 0, unknown unconditional: 11525] , Statistics on independence cache: Total cache size (in pairs): 332, Positive cache size: 313, Positive conditional cache size: 0, Positive unconditional cache size: 313, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - 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: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: 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, 439 locations, 33 error locations. Started 1 CEGAR loops. OverallTime: 36922.6ms, OverallIterations: 34, TraceHistogramMax: 4, EmptinessCheckTime: 60.6ms, AutomataDifference: 6815.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14417.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1694 SDtfs, 4131 SDslu, 3244 SDs, 0 SdLazy, 1745 SolverSat, 177 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1742.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 1065.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=7259occurred in iteration=17, InterpolantAutomatonStates: 193, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6514.3ms AutomataMinimizationTime, 34 MinimizatonAttempts, 60976 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 285.3ms SsaConstructionTime, 1097.4ms SatisfiabilityAnalysisTime, 2292.8ms InterpolantComputationTime, 499 NumberOfCodeBlocks, 478 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 447 ConstructedInterpolants, 0 QuantifiedInterpolants, 1574 SizeOfPredicates, 26 NumberOfNonLiveVariables, 2930 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 52 InterpolantComputations, 27 PerfectInterpolantSequences, 89/149 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-08 15:48:52,397 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...