/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:19:26,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:19:26,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:19:26,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:19:26,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:19:26,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:19:26,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:19:26,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:19:26,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:19:26,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:19:26,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:19:26,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:19:26,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:19:26,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:19:26,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:19:26,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:19:26,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:19:26,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:19:26,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:19:26,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:19:26,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:19:26,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:19:26,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:19:26,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:19:26,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 22:19:26,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:19:26,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:19:26,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:19:26,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:19:26,632 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:19:26,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:19:26,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:19:26,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:19:26,634 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:19:26,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:19:26,635 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:19:26,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:19:26,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:19:26,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:19:26,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:19:26,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:19:26,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:19:26,636 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:19:26,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:19:26,636 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:19:26,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:19:26,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:19:26,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:19:26,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:19:26,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:19:26,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:19:26,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:19:26,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:19:26,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:19:26,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:19:26,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:19:26,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:19:26,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:19:26,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:19:26,978 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:19:26,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:19:26,983 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:19:26,984 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:19:26,984 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2020-10-15 22:19:27,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d3494e9d/dc3891eb8f6c4f829511463e273bc05d/FLAG415c49878 [2020-10-15 22:19:27,626 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:19:27,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2020-10-15 22:19:27,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d3494e9d/dc3891eb8f6c4f829511463e273bc05d/FLAG415c49878 [2020-10-15 22:19:27,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d3494e9d/dc3891eb8f6c4f829511463e273bc05d [2020-10-15 22:19:27,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:19:27,893 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:19:27,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:19:27,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:19:27,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:19:27,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:19:27" (1/1) ... [2020-10-15 22:19:27,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1afea2b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:27, skipping insertion in model container [2020-10-15 22:19:27,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:19:27" (1/1) ... [2020-10-15 22:19:27,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:19:27,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:19:28,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:19:28,448 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:19:28,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:19:28,623 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:19:28,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:28 WrapperNode [2020-10-15 22:19:28,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:19:28,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:19:28,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:19:28,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:19:28,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:28" (1/1) ... [2020-10-15 22:19:28,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:28" (1/1) ... [2020-10-15 22:19:28,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:19:28,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:19:28,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:19:28,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:19:28,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:28" (1/1) ... [2020-10-15 22:19:28,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:28" (1/1) ... [2020-10-15 22:19:28,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:28" (1/1) ... [2020-10-15 22:19:28,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:28" (1/1) ... [2020-10-15 22:19:28,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:28" (1/1) ... [2020-10-15 22:19:28,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:28" (1/1) ... [2020-10-15 22:19:28,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:28" (1/1) ... [2020-10-15 22:19:28,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:19:28,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:19:28,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:19:28,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:19:28,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:19:28,819 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-15 22:19:28,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-15 22:19:28,819 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-15 22:19:28,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-15 22:19:28,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:19:28,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:19:28,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:19:28,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:19:28,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:19:28,822 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:19:29,133 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:19:29,133 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-15 22:19:29,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:19:29 BoogieIcfgContainer [2020-10-15 22:19:29,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:19:29,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:19:29,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:19:29,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:19:29,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:19:27" (1/3) ... [2020-10-15 22:19:29,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fccad90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:19:29, skipping insertion in model container [2020-10-15 22:19:29,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:28" (2/3) ... [2020-10-15 22:19:29,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fccad90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:19:29, skipping insertion in model container [2020-10-15 22:19:29,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:19:29" (3/3) ... [2020-10-15 22:19:29,144 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2020-10-15 22:19:29,158 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:19:29,159 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:19:29,168 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:19:29,169 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:19:29,200 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,201 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,202 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,202 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,202 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,203 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,203 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,203 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,211 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,213 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,213 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,219 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,220 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,220 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,238 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:19:29,260 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:29,260 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:29,261 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:29,261 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:29,261 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:29,261 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:29,261 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:29,261 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:29,275 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:29,279 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 132 flow [2020-10-15 22:19:29,282 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 61 transitions, 132 flow [2020-10-15 22:19:29,284 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 132 flow [2020-10-15 22:19:29,335 INFO L129 PetriNetUnfolder]: 4/71 cut-off events. [2020-10-15 22:19:29,336 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:19:29,342 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 71 events. 4/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2020-10-15 22:19:29,345 INFO L117 LiptonReduction]: Number of co-enabled transitions 692 [2020-10-15 22:19:30,571 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-10-15 22:19:31,101 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-15 22:19:31,183 INFO L132 LiptonReduction]: Checked pairs total: 623 [2020-10-15 22:19:31,183 INFO L134 LiptonReduction]: Total number of compositions: 61 [2020-10-15 22:19:31,190 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-10-15 22:19:31,201 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-10-15 22:19:31,203 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-15 22:19:31,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:19:31,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:31,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:19:31,210 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:31,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:31,216 INFO L82 PathProgramCache]: Analyzing trace with hash 245288, now seen corresponding path program 1 times [2020-10-15 22:19:31,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:31,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029493669] [2020-10-15 22:19:31,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:31,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:31,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029493669] [2020-10-15 22:19:31,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:31,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:19:31,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879881002] [2020-10-15 22:19:31,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:31,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:31,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:31,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:31,428 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-10-15 22:19:31,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:31,465 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-10-15 22:19:31,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:31,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:19:31,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:31,478 INFO L225 Difference]: With dead ends: 35 [2020-10-15 22:19:31,478 INFO L226 Difference]: Without dead ends: 31 [2020-10-15 22:19:31,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:31,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-15 22:19:31,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-15 22:19:31,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-15 22:19:31,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-10-15 22:19:31,518 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-10-15 22:19:31,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:31,518 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-10-15 22:19:31,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:31,519 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-10-15 22:19:31,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 22:19:31,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:31,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:31,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:19:31,520 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:31,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:31,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1115005406, now seen corresponding path program 1 times [2020-10-15 22:19:31,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:31,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899151664] [2020-10-15 22:19:31,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:31,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:31,568 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:31,593 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:19:31,594 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:19:31,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:19:31,595 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 22:19:31,600 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [219] [219] ULTIMATE.startENTRY-->L704: Formula: (let ((.cse1 (store |#valid_In1929565589| 0 0))) (let ((.cse0 (store .cse1 |ULTIMATE.start_main_~#t1~0.base_Out1929565589| 1))) (and (= (store .cse0 |ULTIMATE.start_main_~#t2~0.base_Out1929565589| 1) |#valid_Out1929565589|) (= |ULTIMATE.start_#in~argc_In1929565589| |ULTIMATE.start_main_#in~argc_Out1929565589|) (= |ULTIMATE.start_main_#in~argc_Out1929565589| ULTIMATE.start_main_~argc_Out1929565589) (= |ULTIMATE.start_assume_abort_if_not_#in~cond_Out1929565589| 1) (= (select .cse1 |ULTIMATE.start_main_~#t1~0.base_Out1929565589|) 0) (< 0 |#StackHeapBarrier_In1929565589|) (= |#NULL.offset_Out1929565589| 0) (= |ULTIMATE.start_main_~#t1~0.offset_Out1929565589| 0) (< |#StackHeapBarrier_In1929565589| |ULTIMATE.start_main_~#t1~0.base_Out1929565589|) (= ULTIMATE.start_assume_abort_if_not_~cond_Out1929565589 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out1929565589|) (= |#length_Out1929565589| (store (store |#length_In1929565589| |ULTIMATE.start_main_~#t1~0.base_Out1929565589| 4) |ULTIMATE.start_main_~#t2~0.base_Out1929565589| 4)) (= |ULTIMATE.start_main_#in~argv.base_Out1929565589| |ULTIMATE.start_#in~argv.base_In1929565589|) (= |ULTIMATE.start_#in~argv.offset_In1929565589| |ULTIMATE.start_main_#in~argv.offset_Out1929565589|) (= (store |#memory_int_In1929565589| |ULTIMATE.start_main_~#t1~0.base_Out1929565589| (store (select |#memory_int_In1929565589| |ULTIMATE.start_main_~#t1~0.base_Out1929565589|) |ULTIMATE.start_main_~#t1~0.offset_Out1929565589| 0)) |#memory_int_Out1929565589|) (= |ULTIMATE.start_main_#in~argv.base_Out1929565589| ULTIMATE.start_main_~argv.base_Out1929565589) (= ~x~0_Out1929565589 0) (< |#StackHeapBarrier_In1929565589| |ULTIMATE.start_main_~#t2~0.base_Out1929565589|) (< 0 ~n~0_Out1929565589) (= |ULTIMATE.start_main_~#t2~0.offset_Out1929565589| 0) (= (select .cse0 |ULTIMATE.start_main_~#t2~0.base_Out1929565589|) 0) (= |#NULL.base_Out1929565589| 0) (<= ~n~0_Out1929565589 2147483647) (= ULTIMATE.start_main_~argv.offset_Out1929565589 |ULTIMATE.start_main_#in~argv.offset_Out1929565589|)))) InVars {#StackHeapBarrier=|#StackHeapBarrier_In1929565589|, #valid=|#valid_In1929565589|, #memory_int=|#memory_int_In1929565589|, #length=|#length_In1929565589|, ULTIMATE.start_#in~argc=|ULTIMATE.start_#in~argc_In1929565589|, ULTIMATE.start_#in~argv.offset=|ULTIMATE.start_#in~argv.offset_In1929565589|, ULTIMATE.start_#in~argv.base=|ULTIMATE.start_#in~argv.base_In1929565589|} OutVars{ULTIMATE.start_main_~argv.offset=ULTIMATE.start_main_~argv.offset_Out1929565589, ULTIMATE.start_main_#t~nondet5=|ULTIMATE.start_main_#t~nondet5_Out1929565589|, ULTIMATE.start_main_#t~nondet2=|ULTIMATE.start_main_#t~nondet2_Out1929565589|, ULTIMATE.start_main_#t~nondet3=|ULTIMATE.start_main_#t~nondet3_Out1929565589|, #NULL.offset=|#NULL.offset_Out1929565589|, ULTIMATE.start_#in~argv.offset=|ULTIMATE.start_#in~argv.offset_In1929565589|, ULTIMATE.start_main_#t~post4=|ULTIMATE.start_main_#t~post4_Out1929565589|, ULTIMATE.start_main_~argv.base=ULTIMATE.start_main_~argv.base_Out1929565589, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out1929565589, ULTIMATE.start_main_~argc=ULTIMATE.start_main_~argc_Out1929565589, #length=|#length_Out1929565589|, ULTIMATE.start_#in~argc=|ULTIMATE.start_#in~argc_In1929565589|, ULTIMATE.start_main_~#t2~0.base=|ULTIMATE.start_main_~#t2~0.base_Out1929565589|, ULTIMATE.start_#in~argv.base=|ULTIMATE.start_#in~argv.base_In1929565589|, ULTIMATE.start_main_#in~argv.base=|ULTIMATE.start_main_#in~argv.base_Out1929565589|, ULTIMATE.start_main_#in~argv.offset=|ULTIMATE.start_main_#in~argv.offset_Out1929565589|, ULTIMATE.start_main_~#t2~0.offset=|ULTIMATE.start_main_~#t2~0.offset_Out1929565589|, ULTIMATE.start_main_~i~0=ULTIMATE.start_main_~i~0_Out1929565589, #NULL.base=|#NULL.base_Out1929565589|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_Out1929565589|, ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_Out1929565589|, #StackHeapBarrier=|#StackHeapBarrier_In1929565589|, ULTIMATE.start_main_#res=|ULTIMATE.start_main_#res_Out1929565589|, #valid=|#valid_Out1929565589|, ULTIMATE.start_main_#in~argc=|ULTIMATE.start_main_#in~argc_Out1929565589|, #memory_int=|#memory_int_Out1929565589|, ~n~0=~n~0_Out1929565589, ~x~0=~x~0_Out1929565589, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_Out1929565589|} AuxVars[] AssignedVars[ULTIMATE.start_main_~argv.offset, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~argv.base, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_~argc, #length, ULTIMATE.start_main_~#t2~0.base, ULTIMATE.start_main_#in~argv.base, ULTIMATE.start_main_#in~argv.offset, ULTIMATE.start_main_~#t2~0.offset, ULTIMATE.start_main_~i~0, #NULL.base, ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_~#t1~0.base, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_#in~argc, #memory_int, ~n~0, ~x~0, ULTIMATE.start_main_~#t1~0.offset] because there is no mapped edge [2020-10-15 22:19:31,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:19:31 BasicIcfg [2020-10-15 22:19:31,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:19:31,626 INFO L168 Benchmark]: Toolchain (without parser) took 3733.25 ms. Allocated memory was 253.8 MB in the beginning and 374.3 MB in the end (delta: 120.6 MB). Free memory was 208.7 MB in the beginning and 301.7 MB in the end (delta: -93.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:31,627 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 253.8 MB. Free memory is still 230.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:19:31,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.48 ms. Allocated memory was 253.8 MB in the beginning and 322.4 MB in the end (delta: 68.7 MB). Free memory was 208.7 MB in the beginning and 275.2 MB in the end (delta: -66.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:31,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.73 ms. Allocated memory is still 322.4 MB. Free memory was 275.2 MB in the beginning and 272.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:31,630 INFO L168 Benchmark]: Boogie Preprocessor took 55.12 ms. Allocated memory is still 322.4 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:19:31,630 INFO L168 Benchmark]: RCFGBuilder took 375.99 ms. Allocated memory is still 322.4 MB. Free memory was 272.7 MB in the beginning and 250.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:31,631 INFO L168 Benchmark]: TraceAbstraction took 2486.86 ms. Allocated memory was 322.4 MB in the beginning and 374.3 MB in the end (delta: 51.9 MB). Free memory was 250.8 MB in the beginning and 301.7 MB in the end (delta: -50.9 MB). Peak memory consumption was 993.2 kB. Max. memory is 14.2 GB. [2020-10-15 22:19:31,636 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 253.8 MB. Free memory is still 230.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 730.48 ms. Allocated memory was 253.8 MB in the beginning and 322.4 MB in the end (delta: 68.7 MB). Free memory was 208.7 MB in the beginning and 275.2 MB in the end (delta: -66.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 76.73 ms. Allocated memory is still 322.4 MB. Free memory was 275.2 MB in the beginning and 272.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 55.12 ms. Allocated memory is still 322.4 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 375.99 ms. Allocated memory is still 322.4 MB. Free memory was 272.7 MB in the beginning and 250.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2486.86 ms. Allocated memory was 322.4 MB in the beginning and 374.3 MB in the end (delta: 51.9 MB). Free memory was 250.8 MB in the beginning and 301.7 MB in the end (delta: -50.9 MB). Peak memory consumption was 993.2 kB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 475 VarBasedMoverChecksPositive, 3 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 3 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 3 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 64 PlacesBefore, 18 PlacesAfterwards, 61 TransitionsBefore, 12 TransitionsAfterwards, 692 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 61 TotalNumberOfCompositions, 623 MoverChecksTotal - CounterExampleResult [Line: 679]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L704] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L705] 0 i = 0 VAL [n=1, x=0] [L705] COND TRUE 0 i < n [L706] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L693] 2 int t; [L694] 2 t = x [L695] 2 x = t + 1 [L696] 2 return 0; [L678] COND TRUE 1 !(cond) [L679] 1 __VERIFIER_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 7 SDtfs, 7 SDslu, 2 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! Received shutdown request...