/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:52:39,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:52:39,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:52:39,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:52:39,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:52:39,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:52:39,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:52:39,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:52:39,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:52:39,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:52:39,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:52:39,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:52:39,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:52:39,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:52:39,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:52:39,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:52:39,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:52:39,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:52:39,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:52:39,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:52:39,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:52:39,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:52:39,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:52:39,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:52:39,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:52:39,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:52:39,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:52:39,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:52:39,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:52:39,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:52:39,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:52:39,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:52:39,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:52:39,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:52:39,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:52:39,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:52:39,717 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-NoLbe.epf [2019-12-19 04:52:39,740 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:52:39,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:52:39,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:52:39,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:52:39,743 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:52:39,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:52:39,743 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:52:39,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:52:39,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:52:39,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:52:39,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:52:39,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:52:39,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:52:39,746 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:52:39,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:52:39,746 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:52:39,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:52:39,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:52:39,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:52:39,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:52:39,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:52:39,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:52:39,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:52:39,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:52:39,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:52:39,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:52:39,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:52:39,749 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:52:39,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:52:39,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:52:40,043 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:52:40,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:52:40,063 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:52:40,064 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:52:40,065 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:52:40,066 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2019-12-19 04:52:40,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11d22dc10/866448a186d14155915ed41e95aa6b38/FLAGf731cf761 [2019-12-19 04:52:40,735 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:52:40,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2019-12-19 04:52:40,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11d22dc10/866448a186d14155915ed41e95aa6b38/FLAGf731cf761 [2019-12-19 04:52:41,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11d22dc10/866448a186d14155915ed41e95aa6b38 [2019-12-19 04:52:41,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:52:41,127 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:52:41,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:52:41,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:52:41,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:52:41,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:52:41" (1/1) ... [2019-12-19 04:52:41,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49423991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41, skipping insertion in model container [2019-12-19 04:52:41,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:52:41" (1/1) ... [2019-12-19 04:52:41,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:52:41,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:52:41,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:52:41,661 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:52:41,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:52:41,796 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:52:41,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41 WrapperNode [2019-12-19 04:52:41,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:52:41,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:52:41,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:52:41,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:52:41,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41" (1/1) ... [2019-12-19 04:52:41,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41" (1/1) ... [2019-12-19 04:52:41,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:52:41,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:52:41,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:52:41,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:52:41,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41" (1/1) ... [2019-12-19 04:52:41,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41" (1/1) ... [2019-12-19 04:52:41,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41" (1/1) ... [2019-12-19 04:52:41,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41" (1/1) ... [2019-12-19 04:52:41,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41" (1/1) ... [2019-12-19 04:52:41,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41" (1/1) ... [2019-12-19 04:52:41,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41" (1/1) ... [2019-12-19 04:52:41,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:52:41,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:52:41,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:52:41,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:52:41,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41" (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 [2019-12-19 04:52:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:52:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:52:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:52:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:52:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:52:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:52:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:52:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:52:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:52:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:52:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:52:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:52:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:52:41,953 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:52:42,301 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:52:42,301 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:52:42,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:52:42 BoogieIcfgContainer [2019-12-19 04:52:42,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:52:42,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:52:42,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:52:42,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:52:42,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:52:41" (1/3) ... [2019-12-19 04:52:42,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c75cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:52:42, skipping insertion in model container [2019-12-19 04:52:42,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:41" (2/3) ... [2019-12-19 04:52:42,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c75cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:52:42, skipping insertion in model container [2019-12-19 04:52:42,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:52:42" (3/3) ... [2019-12-19 04:52:42,312 INFO L109 eAbstractionObserver]: Analyzing ICFG safe017_tso.oepc.i [2019-12-19 04:52:42,324 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:52:42,325 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:52:42,332 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:52:42,332 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:52:42,362 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,362 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,363 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,363 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,363 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,364 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,365 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,365 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,365 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,366 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,366 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,366 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,367 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,367 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,367 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,367 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,371 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,372 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,372 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,372 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,378 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,378 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,378 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,379 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,381 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,382 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,382 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,382 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:42,398 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:52:42,419 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:52:42,419 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:52:42,419 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:52:42,419 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:52:42,420 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:52:42,420 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:52:42,420 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:52:42,420 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:52:42,432 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 52 transitions [2019-12-19 04:52:42,512 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1246 states. [2019-12-19 04:52:42,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states. [2019-12-19 04:52:42,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-19 04:52:42,531 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:42,532 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:42,533 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:42,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:42,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1245236198, now seen corresponding path program 1 times [2019-12-19 04:52:42,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:42,549 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671743037] [2019-12-19 04:52:42,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:42,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:42,935 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671743037] [2019-12-19 04:52:42,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:42,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:52:42,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10978735] [2019-12-19 04:52:42,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:52:42,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:42,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:52:42,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:52:42,959 INFO L87 Difference]: Start difference. First operand 1246 states. Second operand 4 states. [2019-12-19 04:52:43,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:43,136 INFO L93 Difference]: Finished difference Result 1293 states and 3959 transitions. [2019-12-19 04:52:43,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:52:43,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-12-19 04:52:43,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:43,174 INFO L225 Difference]: With dead ends: 1293 [2019-12-19 04:52:43,175 INFO L226 Difference]: Without dead ends: 599 [2019-12-19 04:52:43,176 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:52:43,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2019-12-19 04:52:43,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2019-12-19 04:52:43,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2019-12-19 04:52:43,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1774 transitions. [2019-12-19 04:52:43,286 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1774 transitions. Word has length 29 [2019-12-19 04:52:43,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:43,287 INFO L462 AbstractCegarLoop]: Abstraction has 599 states and 1774 transitions. [2019-12-19 04:52:43,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:52:43,287 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1774 transitions. [2019-12-19 04:52:43,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:52:43,291 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:43,291 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:43,291 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:43,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:43,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1351365510, now seen corresponding path program 1 times [2019-12-19 04:52:43,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:43,292 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478647520] [2019-12-19 04:52:43,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:43,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:43,434 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478647520] [2019-12-19 04:52:43,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:43,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:52:43,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481700378] [2019-12-19 04:52:43,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:52:43,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:43,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:52:43,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:52:43,439 INFO L87 Difference]: Start difference. First operand 599 states and 1774 transitions. Second operand 5 states. [2019-12-19 04:52:43,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:43,517 INFO L93 Difference]: Finished difference Result 599 states and 1693 transitions. [2019-12-19 04:52:43,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:52:43,518 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-19 04:52:43,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:43,523 INFO L225 Difference]: With dead ends: 599 [2019-12-19 04:52:43,524 INFO L226 Difference]: Without dead ends: 536 [2019-12-19 04:52:43,525 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:52:43,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-12-19 04:52:43,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-12-19 04:52:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-12-19 04:52:43,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1543 transitions. [2019-12-19 04:52:43,564 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1543 transitions. Word has length 30 [2019-12-19 04:52:43,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:43,567 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 1543 transitions. [2019-12-19 04:52:43,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:52:43,567 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1543 transitions. [2019-12-19 04:52:43,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:52:43,569 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:43,569 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:43,570 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:43,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:43,572 INFO L82 PathProgramCache]: Analyzing trace with hash -360601844, now seen corresponding path program 1 times [2019-12-19 04:52:43,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:43,573 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113406595] [2019-12-19 04:52:43,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:43,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113406595] [2019-12-19 04:52:43,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:43,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:52:43,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444427380] [2019-12-19 04:52:43,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:52:43,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:43,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:52:43,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:52:43,737 INFO L87 Difference]: Start difference. First operand 536 states and 1543 transitions. Second operand 6 states. [2019-12-19 04:52:43,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:43,829 INFO L93 Difference]: Finished difference Result 401 states and 1057 transitions. [2019-12-19 04:52:43,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:52:43,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-12-19 04:52:43,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:43,832 INFO L225 Difference]: With dead ends: 401 [2019-12-19 04:52:43,833 INFO L226 Difference]: Without dead ends: 347 [2019-12-19 04:52:43,833 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:52:43,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-12-19 04:52:43,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-12-19 04:52:43,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-12-19 04:52:43,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 913 transitions. [2019-12-19 04:52:43,846 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 913 transitions. Word has length 31 [2019-12-19 04:52:43,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:43,847 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 913 transitions. [2019-12-19 04:52:43,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:52:43,847 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 913 transitions. [2019-12-19 04:52:43,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:52:43,848 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:43,848 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:43,849 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:43,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:43,849 INFO L82 PathProgramCache]: Analyzing trace with hash -645162979, now seen corresponding path program 1 times [2019-12-19 04:52:43,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:43,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224696786] [2019-12-19 04:52:43,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:44,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:44,003 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224696786] [2019-12-19 04:52:44,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:44,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:52:44,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558933127] [2019-12-19 04:52:44,005 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:52:44,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:44,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:52:44,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:52:44,006 INFO L87 Difference]: Start difference. First operand 347 states and 913 transitions. Second operand 7 states. [2019-12-19 04:52:44,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:44,250 INFO L93 Difference]: Finished difference Result 725 states and 1957 transitions. [2019-12-19 04:52:44,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-19 04:52:44,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-12-19 04:52:44,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:44,253 INFO L225 Difference]: With dead ends: 725 [2019-12-19 04:52:44,254 INFO L226 Difference]: Without dead ends: 251 [2019-12-19 04:52:44,255 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2019-12-19 04:52:44,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-12-19 04:52:44,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2019-12-19 04:52:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-12-19 04:52:44,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 670 transitions. [2019-12-19 04:52:44,268 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 670 transitions. Word has length 32 [2019-12-19 04:52:44,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:44,269 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 670 transitions. [2019-12-19 04:52:44,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:52:44,269 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 670 transitions. [2019-12-19 04:52:44,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:52:44,273 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:44,273 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:44,273 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:44,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:44,274 INFO L82 PathProgramCache]: Analyzing trace with hash 853176457, now seen corresponding path program 2 times [2019-12-19 04:52:44,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:44,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612450874] [2019-12-19 04:52:44,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:44,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612450874] [2019-12-19 04:52:44,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:44,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:52:44,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945965513] [2019-12-19 04:52:44,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:52:44,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:44,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:52:44,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:52:44,514 INFO L87 Difference]: Start difference. First operand 251 states and 670 transitions. Second operand 8 states. [2019-12-19 04:52:44,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:44,618 INFO L93 Difference]: Finished difference Result 197 states and 508 transitions. [2019-12-19 04:52:44,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:52:44,618 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-12-19 04:52:44,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:44,619 INFO L225 Difference]: With dead ends: 197 [2019-12-19 04:52:44,619 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:52:44,620 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:52:44,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:52:44,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:52:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:52:44,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:52:44,621 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-12-19 04:52:44,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:44,621 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:52:44,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:52:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:52:44,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:52:44,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:52:44 BasicIcfg [2019-12-19 04:52:44,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:52:44,630 INFO L168 Benchmark]: Toolchain (without parser) took 3503.18 ms. Allocated memory was 145.2 MB in the beginning and 251.7 MB in the end (delta: 106.4 MB). Free memory was 101.3 MB in the beginning and 199.4 MB in the end (delta: -98.1 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:44,631 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 145.2 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 04:52:44,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.67 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 101.3 MB in the beginning and 156.6 MB in the end (delta: -55.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:44,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.09 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 154.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:44,634 INFO L168 Benchmark]: Boogie Preprocessor took 28.11 ms. Allocated memory is still 201.9 MB. Free memory was 154.6 MB in the beginning and 153.6 MB in the end (delta: 971.5 kB). Peak memory consumption was 971.5 kB. Max. memory is 7.1 GB. [2019-12-19 04:52:44,635 INFO L168 Benchmark]: RCFGBuilder took 425.70 ms. Allocated memory is still 201.9 MB. Free memory was 153.6 MB in the beginning and 133.5 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:44,636 INFO L168 Benchmark]: TraceAbstraction took 2323.42 ms. Allocated memory was 201.9 MB in the beginning and 251.7 MB in the end (delta: 49.8 MB). Free memory was 132.5 MB in the beginning and 199.4 MB in the end (delta: -66.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 04:52:44,640 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 145.2 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.67 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 101.3 MB in the beginning and 156.6 MB in the end (delta: -55.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.09 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 154.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.11 ms. Allocated memory is still 201.9 MB. Free memory was 154.6 MB in the beginning and 153.6 MB in the end (delta: 971.5 kB). Peak memory consumption was 971.5 kB. Max. memory is 7.1 GB. * RCFGBuilder took 425.70 ms. Allocated memory is still 201.9 MB. Free memory was 153.6 MB in the beginning and 133.5 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2323.42 ms. Allocated memory was 201.9 MB in the beginning and 251.7 MB in the end (delta: 49.8 MB). Free memory was 132.5 MB in the beginning and 199.4 MB in the end (delta: -66.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 52 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 222 SDtfs, 332 SDslu, 547 SDs, 0 SdLazy, 85 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 13389 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...