/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 14:55:26,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 14:55:26,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 14:55:26,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 14:55:26,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 14:55:26,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 14:55:26,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 14:55:26,147 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-07 14:55:26,204 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 14:55:26,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 14:55:26,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 14:55:26,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 14:55:26,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 14:55:26,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 14:55:26,211 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 14:55:26,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 14:55:26,211 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 14:55:26,211 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 14:55:26,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 14:55:26,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 14:55:26,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 14:55:26,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-07 14:55:26,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 14:55:26,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-07 14:55:26,214 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-07 14:55:26,214 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 14:55:26,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-07 14:55:26,214 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 14:55:26,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-07 14:55:26,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 14:55:26,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 14:55:26,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 14:55:26,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 14:55:26,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 14:55:26,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 14:55:26,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-07 14:55:26,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-07 14:55:26,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-07 14:55:26,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-07 14:55:26,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 14:55:26,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 14:55:26,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 14:55:26,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 14:55:26,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 14:55:26,621 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 14:55:26,622 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 14:55:26,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c [2021-10-07 14:55:26,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10f090849/ffb36abbdb0b42c9b23e58989605e7aa/FLAG234b22772 [2021-10-07 14:55:27,269 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 14:55:27,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c [2021-10-07 14:55:27,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10f090849/ffb36abbdb0b42c9b23e58989605e7aa/FLAG234b22772 [2021-10-07 14:55:27,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10f090849/ffb36abbdb0b42c9b23e58989605e7aa [2021-10-07 14:55:27,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 14:55:27,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-07 14:55:27,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 14:55:27,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 14:55:27,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 14:55:27,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:55:27" (1/1) ... [2021-10-07 14:55:27,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd10a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27, skipping insertion in model container [2021-10-07 14:55:27,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:55:27" (1/1) ... [2021-10-07 14:55:27,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 14:55:27,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 14:55:27,858 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c[2069,2082] [2021-10-07 14:55:27,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 14:55:27,869 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 14:55:27,892 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c[2069,2082] [2021-10-07 14:55:27,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 14:55:27,910 INFO L208 MainTranslator]: Completed translation [2021-10-07 14:55:27,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27 WrapperNode [2021-10-07 14:55:27,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 14:55:27,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 14:55:27,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 14:55:27,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 14:55:27,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27" (1/1) ... [2021-10-07 14:55:27,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27" (1/1) ... [2021-10-07 14:55:27,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 14:55:27,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 14:55:27,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 14:55:27,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 14:55:27,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27" (1/1) ... [2021-10-07 14:55:27,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27" (1/1) ... [2021-10-07 14:55:27,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27" (1/1) ... [2021-10-07 14:55:27,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27" (1/1) ... [2021-10-07 14:55:27,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27" (1/1) ... [2021-10-07 14:55:27,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27" (1/1) ... [2021-10-07 14:55:27,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27" (1/1) ... [2021-10-07 14:55:27,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 14:55:27,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 14:55:27,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 14:55:27,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 14:55:27,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27" (1/1) ... [2021-10-07 14:55:28,006 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 14:55:28,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 14:55:28,040 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) [2021-10-07 14:55:28,062 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 [2021-10-07 14:55:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 14:55:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 14:55:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 14:55:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 14:55:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 14:55:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 14:55:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-07 14:55:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 14:55:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-07 14:55:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 14:55:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 14:55:28,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-07 14:55:28,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 14:55:28,111 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 14:55:28,574 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 14:55:28,575 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-07 14:55:28,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:55:28 BoogieIcfgContainer [2021-10-07 14:55:28,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 14:55:28,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 14:55:28,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 14:55:28,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 14:55:28,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:55:27" (1/3) ... [2021-10-07 14:55:28,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e0c07e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:55:28, skipping insertion in model container [2021-10-07 14:55:28,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:55:27" (2/3) ... [2021-10-07 14:55:28,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e0c07e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:55:28, skipping insertion in model container [2021-10-07 14:55:28,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:55:28" (3/3) ... [2021-10-07 14:55:28,587 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2021-10-07 14:55:28,594 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-07 14:55:28,594 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 14:55:28,594 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-07 14:55:28,594 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 14:55:28,637 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,637 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,637 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,638 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,638 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,638 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,638 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,639 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,642 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,642 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,645 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,645 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,645 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,646 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,646 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,646 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,646 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,647 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,647 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,647 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,647 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,651 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,651 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,651 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,651 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,657 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,663 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,664 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,664 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,666 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,666 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,666 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:55:28,677 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-07 14:55:28,800 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 14:55:28,809 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 [2021-10-07 14:55:28,809 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-10-07 14:55:28,828 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 14:55:28,842 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 108 transitions, 240 flow [2021-10-07 14:55:28,846 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 108 transitions, 240 flow [2021-10-07 14:55:28,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 108 transitions, 240 flow [2021-10-07 14:55:28,909 INFO L129 PetriNetUnfolder]: 2/105 cut-off events. [2021-10-07 14:55:28,913 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-07 14:55:28,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 105 events. 2/105 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2021-10-07 14:55:28,920 INFO L116 LiptonReduction]: Number of co-enabled transitions 1404 [2021-10-07 14:55:33,764 INFO L131 LiptonReduction]: Checked pairs total: 2393 [2021-10-07 14:55:33,764 INFO L133 LiptonReduction]: Total number of compositions: 99 [2021-10-07 14:55:33,775 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 29 transitions, 82 flow [2021-10-07 14:55:33,821 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 426 states, 381 states have (on average 3.1128608923884515) internal successors, (1186), 425 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:33,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 426 states, 381 states have (on average 3.1128608923884515) internal successors, (1186), 425 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:33,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 14:55:33,838 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:55:33,839 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 14:55:33,840 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2021-10-07 14:55:33,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:55:33,847 INFO L82 PathProgramCache]: Analyzing trace with hash 382983, now seen corresponding path program 1 times [2021-10-07 14:55:33,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:55:33,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186403210] [2021-10-07 14:55:33,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:55:33,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:55:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 14:55:34,004 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-07 14:55:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 14:55:34,057 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-07 14:55:34,059 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-07 14:55:34,061 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,064 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,064 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,065 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,065 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,065 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,066 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,066 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,066 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 14:55:34,066 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 14:55:34,067 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 14:55:34,067 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,067 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,068 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,068 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,068 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,069 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,069 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:55:34,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-07 14:55:34,079 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 14:55:34,079 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 14:55:34,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 02:55:34 BasicIcfg [2021-10-07 14:55:34,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 14:55:34,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-07 14:55:34,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-07 14:55:34,102 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-07 14:55:34,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:55:28" (3/4) ... [2021-10-07 14:55:34,105 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-07 14:55:34,148 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/parallel-simple-equiv.wvr.c-witness.graphml [2021-10-07 14:55:34,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-07 14:55:34,151 INFO L168 Benchmark]: Toolchain (without parser) took 6516.74 ms. Allocated memory was 168.8 MB in the beginning and 211.8 MB in the end (delta: 43.0 MB). Free memory was 143.9 MB in the beginning and 164.1 MB in the end (delta: -20.2 MB). Peak memory consumption was 23.9 MB. Max. memory is 8.0 GB. [2021-10-07 14:55:34,152 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 168.8 MB. Free memory was 139.0 MB in the beginning and 138.8 MB in the end (delta: 215.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 14:55:34,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.21 ms. Allocated memory is still 168.8 MB. Free memory was 143.5 MB in the beginning and 133.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-07 14:55:34,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.22 ms. Allocated memory is still 168.8 MB. Free memory was 133.3 MB in the beginning and 131.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 14:55:34,154 INFO L168 Benchmark]: Boogie Preprocessor took 30.69 ms. Allocated memory is still 168.8 MB. Free memory was 131.7 MB in the beginning and 130.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 14:55:34,155 INFO L168 Benchmark]: RCFGBuilder took 591.23 ms. Allocated memory is still 168.8 MB. Free memory was 130.7 MB in the beginning and 118.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-07 14:55:34,156 INFO L168 Benchmark]: TraceAbstraction took 5521.65 ms. Allocated memory was 168.8 MB in the beginning and 211.8 MB in the end (delta: 43.0 MB). Free memory was 117.9 MB in the beginning and 166.2 MB in the end (delta: -48.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 14:55:34,157 INFO L168 Benchmark]: Witness Printer took 46.82 ms. Allocated memory is still 211.8 MB. Free memory was 166.2 MB in the beginning and 164.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 14:55:34,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 168.8 MB. Free memory was 139.0 MB in the beginning and 138.8 MB in the end (delta: 215.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 269.21 ms. Allocated memory is still 168.8 MB. Free memory was 143.5 MB in the beginning and 133.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.22 ms. Allocated memory is still 168.8 MB. Free memory was 133.3 MB in the beginning and 131.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.69 ms. Allocated memory is still 168.8 MB. Free memory was 131.7 MB in the beginning and 130.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 591.23 ms. Allocated memory is still 168.8 MB. Free memory was 130.7 MB in the beginning and 118.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5521.65 ms. Allocated memory was 168.8 MB in the beginning and 211.8 MB in the end (delta: 43.0 MB). Free memory was 117.9 MB in the beginning and 166.2 MB in the end (delta: -48.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 46.82 ms. Allocated memory is still 211.8 MB. Free memory was 166.2 MB in the beginning and 164.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4918.6ms, 116 PlacesBefore, 39 PlacesAfterwards, 108 TransitionsBefore, 29 TransitionsAfterwards, 1404 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 99 TotalNumberOfCompositions, 2393 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1862, positive: 1821, positive conditional: 0, positive unconditional: 1821, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 987, positive: 969, positive conditional: 0, positive unconditional: 969, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 987, positive: 969, positive conditional: 0, positive unconditional: 969, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1862, positive: 852, positive conditional: 0, positive unconditional: 852, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 987, unknown conditional: 0, unknown unconditional: 987] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 83, Positive conditional cache size: 0, Positive unconditional cache size: 83, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - 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 - CounterExampleResult [Line: 41]: integer overflow possible integer overflow possible We found a FailurePath: [L38] 0 int x_0, x_1, temp_2; [L60] 0 pthread_t t1, t2, t3; [L63] 0 x_0 = __VERIFIER_nondet_int() [L64] 0 x_1 = __VERIFIER_nondet_int() [L65] 0 temp_2 = __VERIFIER_nondet_int() [L35] COND FALSE 0 !(!cond) [L70] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [temp_2=0, x_0=2147483647, x_1=2147483647] [L41] 1 x_0++ VAL [temp_2=0, x_0=2147483647, x_0++=2147483647, x_1=2147483647] - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 145 locations, 19 error locations. Started 1 CEGAR loops. OverallTime: 5276.0ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 14.2ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5012.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=426occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.3ms SsaConstructionTime, 53.9ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-07 14:55:34,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...