/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:38:51,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:38:51,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:38:51,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:38:51,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:38:51,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:38:51,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:38:51,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:38:51,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:38:51,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:38:51,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:38:51,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:38:51,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:38:51,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:38:51,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:38:51,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:38:51,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:38:51,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:38:51,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:38:51,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:38:51,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:38:51,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:38:51,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:38:51,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:38:51,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 14:38:51,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:38:51,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:38:51,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:38:51,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:38:51,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:38:51,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:38:51,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:38:51,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:38:51,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:38:51,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:38:51,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:38:51,573 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 14:38:51,595 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:38:51,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:38:51,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:38:51,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:38:51,597 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:38:51,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:38:51,598 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:38:51,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:38:51,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:38:51,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:38:51,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:38:51,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:38:51,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:38:51,600 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:38:51,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:38:51,601 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:38:51,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:38:51,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:38:51,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:38:51,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:38:51,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:38:51,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:38:51,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:38:51,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:38:51,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:38:51,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:38:51,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:38:51,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:38:51,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:38:51,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:38:51,879 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:38:51,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:38:51,901 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:38:51,902 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:38:51,903 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:38:51,904 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.opt.i [2019-12-18 14:38:51,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abdb19035/ac2719456fc8486ab9d6c490aa68b21b/FLAG0266bea0e [2019-12-18 14:38:52,564 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:38:52,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.opt.i [2019-12-18 14:38:52,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abdb19035/ac2719456fc8486ab9d6c490aa68b21b/FLAG0266bea0e [2019-12-18 14:38:52,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abdb19035/ac2719456fc8486ab9d6c490aa68b21b [2019-12-18 14:38:52,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:38:52,892 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:38:52,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:38:52,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:38:52,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:38:52,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:38:52" (1/1) ... [2019-12-18 14:38:52,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af34785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:52, skipping insertion in model container [2019-12-18 14:38:52,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:38:52" (1/1) ... [2019-12-18 14:38:52,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:38:52,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:38:53,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:38:53,433 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:38:53,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:38:53,584 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:38:53,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:53 WrapperNode [2019-12-18 14:38:53,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:38:53,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:38:53,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:38:53,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:38:53,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:53" (1/1) ... [2019-12-18 14:38:53,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:53" (1/1) ... [2019-12-18 14:38:53,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:38:53,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:38:53,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:38:53,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:38:53,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:53" (1/1) ... [2019-12-18 14:38:53,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:53" (1/1) ... [2019-12-18 14:38:53,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:53" (1/1) ... [2019-12-18 14:38:53,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:53" (1/1) ... [2019-12-18 14:38:53,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:53" (1/1) ... [2019-12-18 14:38:53,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:53" (1/1) ... [2019-12-18 14:38:53,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:53" (1/1) ... [2019-12-18 14:38:53,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:38:53,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:38:53,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:38:53,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:38:53,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:53" (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 [2019-12-18 14:38:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:38:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:38:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:38:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:38:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:38:53,725 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:38:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:38:53,726 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:38:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:38:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:38:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:38:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:38:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:38:53,731 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 14:38:54,116 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:38:54,116 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:38:54,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:38:54 BoogieIcfgContainer [2019-12-18 14:38:54,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:38:54,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:38:54,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:38:54,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:38:54,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:38:52" (1/3) ... [2019-12-18 14:38:54,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a0718f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:38:54, skipping insertion in model container [2019-12-18 14:38:54,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:53" (2/3) ... [2019-12-18 14:38:54,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a0718f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:38:54, skipping insertion in model container [2019-12-18 14:38:54,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:38:54" (3/3) ... [2019-12-18 14:38:54,126 INFO L109 eAbstractionObserver]: Analyzing ICFG safe012_tso.opt.i [2019-12-18 14:38:54,136 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:38:54,137 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:38:54,144 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:38:54,145 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:38:54,173 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,174 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,174 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,175 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,175 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,175 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,176 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,176 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,176 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,177 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,177 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,177 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,178 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,178 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,178 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,178 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,179 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,179 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,183 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,184 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,184 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,184 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,190 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,193 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,194 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,194 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,197 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,197 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,197 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,198 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:54,218 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:38:54,236 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:38:54,237 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:38:54,237 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:38:54,237 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:38:54,237 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:38:54,237 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:38:54,238 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:38:54,238 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:38:54,252 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-18 14:38:54,254 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-18 14:38:54,308 INFO L126 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-18 14:38:54,309 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:38:54,315 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:38:54,320 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-18 14:38:54,345 INFO L126 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-18 14:38:54,345 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:38:54,347 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:38:54,350 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:38:54,351 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:38:55,893 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-18 14:38:56,027 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-18 14:38:56,027 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-18 14:38:56,031 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 14:38:56,040 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 14:38:56,042 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 14:38:56,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:38:56,049 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:38:56,050 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:38:56,050 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:38:56,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:38:56,057 INFO L82 PathProgramCache]: Analyzing trace with hash 2019279745, now seen corresponding path program 1 times [2019-12-18 14:38:56,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:38:56,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145516570] [2019-12-18 14:38:56,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:38:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:38:56,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:38:56,281 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145516570] [2019-12-18 14:38:56,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:38:56,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:38:56,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127950022] [2019-12-18 14:38:56,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:38:56,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:38:56,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:38:56,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:38:56,300 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 14:38:56,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:38:56,328 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 14:38:56,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:38:56,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:38:56,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:38:56,353 INFO L225 Difference]: With dead ends: 42 [2019-12-18 14:38:56,354 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 14:38:56,355 INFO L631 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 [2019-12-18 14:38:56,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 14:38:56,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 14:38:56,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:38:56,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 14:38:56,388 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 14:38:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:38:56,390 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 14:38:56,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:38:56,390 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 14:38:56,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:38:56,391 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:38:56,391 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:38:56,391 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:38:56,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:38:56,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1826755775, now seen corresponding path program 1 times [2019-12-18 14:38:56,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:38:56,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963191404] [2019-12-18 14:38:56,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:38:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:38:56,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:38:56,501 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963191404] [2019-12-18 14:38:56,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:38:56,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:38:56,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156633180] [2019-12-18 14:38:56,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:38:56,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:38:56,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:38:56,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:38:56,505 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 14:38:56,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:38:56,536 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 14:38:56,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:38:56,536 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 14:38:56,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:38:56,537 INFO L225 Difference]: With dead ends: 36 [2019-12-18 14:38:56,537 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 14:38:56,538 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:38:56,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 14:38:56,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 14:38:56,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 14:38:56,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 14:38:56,548 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 14:38:56,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:38:56,549 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 14:38:56,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:38:56,549 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 14:38:56,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:38:56,550 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:38:56,550 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:38:56,550 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:38:56,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:38:56,551 INFO L82 PathProgramCache]: Analyzing trace with hash -794534279, now seen corresponding path program 1 times [2019-12-18 14:38:56,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:38:56,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395688378] [2019-12-18 14:38:56,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:38:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:38:56,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:38:56,657 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395688378] [2019-12-18 14:38:56,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:38:56,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:38:56,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321960514] [2019-12-18 14:38:56,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:38:56,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:38:56,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:38:56,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:38:56,659 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-18 14:38:56,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:38:56,664 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-18 14:38:56,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:38:56,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 14:38:56,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:38:56,666 INFO L225 Difference]: With dead ends: 27 [2019-12-18 14:38:56,666 INFO L226 Difference]: Without dead ends: 27 [2019-12-18 14:38:56,666 INFO L631 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 [2019-12-18 14:38:56,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-18 14:38:56,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-18 14:38:56,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-18 14:38:56,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-18 14:38:56,671 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-18 14:38:56,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:38:56,671 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-18 14:38:56,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:38:56,671 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-18 14:38:56,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:38:56,672 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:38:56,672 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:38:56,676 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:38:56,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:38:56,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1700901458, now seen corresponding path program 1 times [2019-12-18 14:38:56,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:38:56,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355860909] [2019-12-18 14:38:56,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:38:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:38:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:38:56,734 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355860909] [2019-12-18 14:38:56,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:38:56,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:38:56,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509691853] [2019-12-18 14:38:56,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:38:56,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:38:56,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:38:56,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:38:56,736 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-18 14:38:56,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:38:56,762 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-18 14:38:56,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:38:56,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:38:56,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:38:56,764 INFO L225 Difference]: With dead ends: 29 [2019-12-18 14:38:56,764 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 14:38:56,765 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:38:56,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 14:38:56,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 14:38:56,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 14:38:56,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 14:38:56,767 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-18 14:38:56,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:38:56,769 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 14:38:56,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:38:56,769 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 14:38:56,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:38:56,770 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:38:56,770 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:38:56,771 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:38:56,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:38:56,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1139321736, now seen corresponding path program 2 times [2019-12-18 14:38:56,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:38:56,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668421197] [2019-12-18 14:38:56,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:38:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:38:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:38:56,826 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668421197] [2019-12-18 14:38:56,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:38:56,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:38:56,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973577070] [2019-12-18 14:38:56,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:38:56,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:38:56,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:38:56,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:38:56,828 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 14:38:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:38:56,842 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 14:38:56,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:38:56,842 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:38:56,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:38:56,842 INFO L225 Difference]: With dead ends: 16 [2019-12-18 14:38:56,843 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:38:56,843 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:38:56,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:38:56,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:38:56,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:38:56,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:38:56,844 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:38:56,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:38:56,844 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:38:56,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:38:56,845 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:38:56,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:38:56,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:38:56 BasicIcfg [2019-12-18 14:38:56,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:38:56,851 INFO L168 Benchmark]: Toolchain (without parser) took 3958.77 ms. Allocated memory was 145.8 MB in the beginning and 245.9 MB in the end (delta: 100.1 MB). Free memory was 101.2 MB in the beginning and 135.6 MB in the end (delta: -34.4 MB). Peak memory consumption was 65.7 MB. Max. memory is 7.1 GB. [2019-12-18 14:38:56,852 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 14:38:56,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.89 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.8 MB in the beginning and 160.2 MB in the end (delta: -59.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-18 14:38:56,855 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.96 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:38:56,855 INFO L168 Benchmark]: Boogie Preprocessor took 26.38 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:38:56,858 INFO L168 Benchmark]: RCFGBuilder took 453.72 ms. Allocated memory is still 203.4 MB. Free memory was 156.8 MB in the beginning and 136.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-18 14:38:56,859 INFO L168 Benchmark]: TraceAbstraction took 2730.65 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 135.7 MB in the beginning and 135.6 MB in the end (delta: 68.5 kB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2019-12-18 14:38:56,867 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 691.89 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.8 MB in the beginning and 160.2 MB in the end (delta: -59.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.96 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.38 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 453.72 ms. Allocated memory is still 203.4 MB. Free memory was 156.8 MB in the beginning and 136.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2730.65 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 135.7 MB in the beginning and 135.6 MB in the end (delta: 68.5 kB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 228 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 47 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 26 SDslu, 37 SDs, 0 SdLazy, 19 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1062 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...