/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/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:54:06,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:54:06,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:54:06,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:54:06,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:54:06,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:54:06,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:54:06,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:54:06,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:54:06,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:54:06,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:54:06,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:54:06,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:54:06,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:54:06,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:54:06,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:54:06,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:54:06,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:54:06,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:54:06,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:54:06,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:54:06,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:54:06,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:54:06,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:54:06,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 04:54:06,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 04:54:06,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 04:54:06,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 04:54:06,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 04:54:06,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 04:54:06,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:54:06,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:54:06,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:54:06,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:54:06,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:54:06,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:54:06,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:54:06,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:54:06,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:54:06,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:54:06,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:54:06,570 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 04:54:06,587 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:54:06,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:54:06,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:54:06,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:54:06,589 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:54:06,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:54:06,589 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:54:06,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:54:06,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:54:06,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:54:06,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:54:06,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:54:06,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:54:06,591 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:54:06,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:54:06,591 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:54:06,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:54:06,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:54:06,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:54:06,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:54:06,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:54:06,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:54:06,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:54:06,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:54:06,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:54:06,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:54:06,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:54:06,594 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:54:06,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:54:06,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:54:06,898 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:54:06,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:54:06,916 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:54:06,918 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:54:06,918 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:54:06,919 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2019-12-19 04:54:06,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e7a5ad60/417582855c9d4b1bbc45fa616b8b44ea/FLAG261cd22d4 [2019-12-19 04:54:07,505 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:54:07,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2019-12-19 04:54:07,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e7a5ad60/417582855c9d4b1bbc45fa616b8b44ea/FLAG261cd22d4 [2019-12-19 04:54:07,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e7a5ad60/417582855c9d4b1bbc45fa616b8b44ea [2019-12-19 04:54:07,840 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:54:07,842 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:54:07,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:54:07,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:54:07,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:54:07,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:54:07" (1/1) ... [2019-12-19 04:54:07,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac36716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:07, skipping insertion in model container [2019-12-19 04:54:07,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:54:07" (1/1) ... [2019-12-19 04:54:07,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:54:07,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:54:08,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:54:08,380 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:54:08,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:54:08,530 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:54:08,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:08 WrapperNode [2019-12-19 04:54:08,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:54:08,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:54:08,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:54:08,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:54:08,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:08" (1/1) ... [2019-12-19 04:54:08,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:08" (1/1) ... [2019-12-19 04:54:08,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:54:08,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:54:08,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:54:08,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:54:08,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:08" (1/1) ... [2019-12-19 04:54:08,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:08" (1/1) ... [2019-12-19 04:54:08,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:08" (1/1) ... [2019-12-19 04:54:08,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:08" (1/1) ... [2019-12-19 04:54:08,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:08" (1/1) ... [2019-12-19 04:54:08,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:08" (1/1) ... [2019-12-19 04:54:08,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:08" (1/1) ... [2019-12-19 04:54:08,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:54:08,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:54:08,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:54:08,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:54:08,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:08" (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 04:54:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:54:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:54:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:54:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:54:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:54:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:54:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:54:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:54:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:54:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:54:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-19 04:54:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-19 04:54:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:54:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:54:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:54:08,687 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 04:54:09,110 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:54:09,111 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:54:09,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:54:09 BoogieIcfgContainer [2019-12-19 04:54:09,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:54:09,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:54:09,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:54:09,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:54:09,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:54:07" (1/3) ... [2019-12-19 04:54:09,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e339e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:54:09, skipping insertion in model container [2019-12-19 04:54:09,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:08" (2/3) ... [2019-12-19 04:54:09,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e339e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:54:09, skipping insertion in model container [2019-12-19 04:54:09,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:54:09" (3/3) ... [2019-12-19 04:54:09,121 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2019-12-19 04:54:09,132 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:54:09,132 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:54:09,153 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:54:09,154 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:54:09,190 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,190 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,190 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,191 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,191 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,192 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,192 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,192 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,193 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,193 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,193 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,193 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,194 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,194 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,194 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,195 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,195 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,195 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,196 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,196 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,196 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,196 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,197 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,197 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,201 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,202 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,202 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,202 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,209 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,209 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,209 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,209 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,212 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,213 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,213 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,213 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,217 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,217 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,217 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,218 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:09,233 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-19 04:54:09,255 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:54:09,255 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:54:09,255 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:54:09,255 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:54:09,256 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:54:09,256 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:54:09,256 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:54:09,256 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:54:09,268 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 64 transitions [2019-12-19 04:54:09,610 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5472 states. [2019-12-19 04:54:09,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5472 states. [2019-12-19 04:54:09,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:54:09,645 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:09,646 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, 1, 1, 1] [2019-12-19 04:54:09,647 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:09,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:09,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1087170205, now seen corresponding path program 1 times [2019-12-19 04:54:09,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:09,666 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020615568] [2019-12-19 04:54:09,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:10,175 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 04:54:10,176 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020615568] [2019-12-19 04:54:10,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:10,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:54:10,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791008212] [2019-12-19 04:54:10,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:54:10,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:10,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:54:10,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:54:10,205 INFO L87 Difference]: Start difference. First operand 5472 states. Second operand 4 states. [2019-12-19 04:54:10,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:10,395 INFO L93 Difference]: Finished difference Result 5709 states and 21934 transitions. [2019-12-19 04:54:10,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:54:10,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-12-19 04:54:10,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:10,445 INFO L225 Difference]: With dead ends: 5709 [2019-12-19 04:54:10,446 INFO L226 Difference]: Without dead ends: 2393 [2019-12-19 04:54:10,449 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 04:54:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2019-12-19 04:54:10,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2393. [2019-12-19 04:54:10,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2393 states. [2019-12-19 04:54:10,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 8937 transitions. [2019-12-19 04:54:10,699 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 8937 transitions. Word has length 35 [2019-12-19 04:54:10,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:10,701 INFO L462 AbstractCegarLoop]: Abstraction has 2393 states and 8937 transitions. [2019-12-19 04:54:10,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:54:10,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 8937 transitions. [2019-12-19 04:54:10,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-19 04:54:10,708 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:10,708 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, 1, 1, 1, 1] [2019-12-19 04:54:10,708 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:10,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:10,709 INFO L82 PathProgramCache]: Analyzing trace with hash 458963065, now seen corresponding path program 1 times [2019-12-19 04:54:10,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:10,710 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424349257] [2019-12-19 04:54:10,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:10,910 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 04:54:10,910 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424349257] [2019-12-19 04:54:10,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:10,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:54:10,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654150896] [2019-12-19 04:54:10,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:54:10,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:10,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:54:10,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:54:10,956 INFO L87 Difference]: Start difference. First operand 2393 states and 8937 transitions. Second operand 5 states. [2019-12-19 04:54:11,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:11,093 INFO L93 Difference]: Finished difference Result 2564 states and 9321 transitions. [2019-12-19 04:54:11,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:54:11,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-12-19 04:54:11,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:11,119 INFO L225 Difference]: With dead ends: 2564 [2019-12-19 04:54:11,119 INFO L226 Difference]: Without dead ends: 2309 [2019-12-19 04:54:11,121 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 04:54:11,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2019-12-19 04:54:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2309. [2019-12-19 04:54:11,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2309 states. [2019-12-19 04:54:11,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 8545 transitions. [2019-12-19 04:54:11,251 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 8545 transitions. Word has length 36 [2019-12-19 04:54:11,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:11,252 INFO L462 AbstractCegarLoop]: Abstraction has 2309 states and 8545 transitions. [2019-12-19 04:54:11,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:54:11,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 8545 transitions. [2019-12-19 04:54:11,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-19 04:54:11,260 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:11,261 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, 1, 1, 1, 1, 1] [2019-12-19 04:54:11,261 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:11,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:11,262 INFO L82 PathProgramCache]: Analyzing trace with hash -355667930, now seen corresponding path program 1 times [2019-12-19 04:54:11,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:11,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912788495] [2019-12-19 04:54:11,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:11,458 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 04:54:11,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912788495] [2019-12-19 04:54:11,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:11,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:54:11,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554599900] [2019-12-19 04:54:11,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:54:11,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:11,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:54:11,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:54:11,460 INFO L87 Difference]: Start difference. First operand 2309 states and 8545 transitions. Second operand 6 states. [2019-12-19 04:54:11,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:11,570 INFO L93 Difference]: Finished difference Result 2174 states and 7681 transitions. [2019-12-19 04:54:11,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:54:11,571 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-12-19 04:54:11,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:11,586 INFO L225 Difference]: With dead ends: 2174 [2019-12-19 04:54:11,587 INFO L226 Difference]: Without dead ends: 1931 [2019-12-19 04:54:11,587 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 04:54:11,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2019-12-19 04:54:11,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1931. [2019-12-19 04:54:11,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1931 states. [2019-12-19 04:54:11,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 6907 transitions. [2019-12-19 04:54:11,665 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 6907 transitions. Word has length 37 [2019-12-19 04:54:11,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:11,665 INFO L462 AbstractCegarLoop]: Abstraction has 1931 states and 6907 transitions. [2019-12-19 04:54:11,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:54:11,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 6907 transitions. [2019-12-19 04:54:11,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 04:54:11,670 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:11,671 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, 1, 1, 1, 1, 1, 1] [2019-12-19 04:54:11,671 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:11,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:11,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1985653842, now seen corresponding path program 1 times [2019-12-19 04:54:11,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:11,672 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125075980] [2019-12-19 04:54:11,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:11,773 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 04:54:11,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125075980] [2019-12-19 04:54:11,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:11,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:54:11,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622337117] [2019-12-19 04:54:11,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:54:11,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:11,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:54:11,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:54:11,776 INFO L87 Difference]: Start difference. First operand 1931 states and 6907 transitions. Second operand 7 states. [2019-12-19 04:54:11,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:11,974 INFO L93 Difference]: Finished difference Result 1364 states and 4531 transitions. [2019-12-19 04:54:11,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:54:11,975 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-12-19 04:54:11,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:11,983 INFO L225 Difference]: With dead ends: 1364 [2019-12-19 04:54:11,984 INFO L226 Difference]: Without dead ends: 1175 [2019-12-19 04:54:11,985 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:54:11,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2019-12-19 04:54:12,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1175. [2019-12-19 04:54:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2019-12-19 04:54:12,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 3883 transitions. [2019-12-19 04:54:12,024 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 3883 transitions. Word has length 38 [2019-12-19 04:54:12,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:12,026 INFO L462 AbstractCegarLoop]: Abstraction has 1175 states and 3883 transitions. [2019-12-19 04:54:12,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:54:12,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 3883 transitions. [2019-12-19 04:54:12,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-19 04:54:12,031 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:12,032 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:54:12,032 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:12,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:12,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1809318845, now seen corresponding path program 1 times [2019-12-19 04:54:12,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:12,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433310180] [2019-12-19 04:54:12,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:12,235 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 04:54:12,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433310180] [2019-12-19 04:54:12,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:12,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:54:12,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721202985] [2019-12-19 04:54:12,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:54:12,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:12,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:54:12,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:54:12,237 INFO L87 Difference]: Start difference. First operand 1175 states and 3883 transitions. Second operand 8 states. [2019-12-19 04:54:12,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:12,476 INFO L93 Difference]: Finished difference Result 2417 states and 8113 transitions. [2019-12-19 04:54:12,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-19 04:54:12,477 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-12-19 04:54:12,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:12,486 INFO L225 Difference]: With dead ends: 2417 [2019-12-19 04:54:12,486 INFO L226 Difference]: Without dead ends: 1019 [2019-12-19 04:54:12,487 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-12-19 04:54:12,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2019-12-19 04:54:12,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1019. [2019-12-19 04:54:12,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2019-12-19 04:54:12,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 3379 transitions. [2019-12-19 04:54:12,522 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 3379 transitions. Word has length 39 [2019-12-19 04:54:12,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:12,522 INFO L462 AbstractCegarLoop]: Abstraction has 1019 states and 3379 transitions. [2019-12-19 04:54:12,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:54:12,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 3379 transitions. [2019-12-19 04:54:12,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-19 04:54:12,525 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:12,525 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:54:12,526 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:12,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:12,526 INFO L82 PathProgramCache]: Analyzing trace with hash 996548435, now seen corresponding path program 2 times [2019-12-19 04:54:12,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:12,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821652226] [2019-12-19 04:54:12,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:12,708 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 04:54:12,711 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821652226] [2019-12-19 04:54:12,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:12,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:54:12,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033049] [2019-12-19 04:54:12,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:54:12,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:12,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:54:12,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:54:12,713 INFO L87 Difference]: Start difference. First operand 1019 states and 3379 transitions. Second operand 8 states. [2019-12-19 04:54:12,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:12,950 INFO L93 Difference]: Finished difference Result 2081 states and 7054 transitions. [2019-12-19 04:54:12,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-19 04:54:12,951 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-12-19 04:54:12,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:12,958 INFO L225 Difference]: With dead ends: 2081 [2019-12-19 04:54:12,958 INFO L226 Difference]: Without dead ends: 827 [2019-12-19 04:54:12,959 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-12-19 04:54:12,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2019-12-19 04:54:12,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 827. [2019-12-19 04:54:12,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-12-19 04:54:12,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 2731 transitions. [2019-12-19 04:54:12,989 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 2731 transitions. Word has length 39 [2019-12-19 04:54:12,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:12,994 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 2731 transitions. [2019-12-19 04:54:12,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:54:12,995 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 2731 transitions. [2019-12-19 04:54:12,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-19 04:54:12,999 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:13,000 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:54:13,000 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:13,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:13,001 INFO L82 PathProgramCache]: Analyzing trace with hash -891063675, now seen corresponding path program 3 times [2019-12-19 04:54:13,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:13,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244226046] [2019-12-19 04:54:13,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:13,148 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 04:54:13,150 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244226046] [2019-12-19 04:54:13,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:13,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:54:13,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140515937] [2019-12-19 04:54:13,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:54:13,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:13,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:54:13,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:54:13,153 INFO L87 Difference]: Start difference. First operand 827 states and 2731 transitions. Second operand 7 states. [2019-12-19 04:54:13,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:13,265 INFO L93 Difference]: Finished difference Result 1313 states and 4432 transitions. [2019-12-19 04:54:13,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:54:13,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-12-19 04:54:13,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:13,271 INFO L225 Difference]: With dead ends: 1313 [2019-12-19 04:54:13,271 INFO L226 Difference]: Without dead ends: 728 [2019-12-19 04:54:13,272 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:54:13,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2019-12-19 04:54:13,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 728. [2019-12-19 04:54:13,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2019-12-19 04:54:13,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 2455 transitions. [2019-12-19 04:54:13,302 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 2455 transitions. Word has length 39 [2019-12-19 04:54:13,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:13,302 INFO L462 AbstractCegarLoop]: Abstraction has 728 states and 2455 transitions. [2019-12-19 04:54:13,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:54:13,303 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 2455 transitions. [2019-12-19 04:54:13,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-19 04:54:13,304 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:13,304 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:54:13,305 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:13,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:13,305 INFO L82 PathProgramCache]: Analyzing trace with hash -527167331, now seen corresponding path program 4 times [2019-12-19 04:54:13,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:13,306 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802681106] [2019-12-19 04:54:13,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:13,434 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 04:54:13,434 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802681106] [2019-12-19 04:54:13,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:13,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:54:13,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148853142] [2019-12-19 04:54:13,435 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:54:13,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:13,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:54:13,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:54:13,436 INFO L87 Difference]: Start difference. First operand 728 states and 2455 transitions. Second operand 7 states. [2019-12-19 04:54:13,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:13,529 INFO L93 Difference]: Finished difference Result 566 states and 1861 transitions. [2019-12-19 04:54:13,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:54:13,529 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-12-19 04:54:13,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:13,530 INFO L225 Difference]: With dead ends: 566 [2019-12-19 04:54:13,530 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:54:13,530 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:54:13,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:54:13,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:54:13,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:54:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:54:13,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2019-12-19 04:54:13,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:13,532 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:54:13,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:54:13,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:54:13,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:54:13,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:54:13 BasicIcfg [2019-12-19 04:54:13,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:54:13,548 INFO L168 Benchmark]: Toolchain (without parser) took 5700.48 ms. Allocated memory was 143.1 MB in the beginning and 315.6 MB in the end (delta: 172.5 MB). Free memory was 99.7 MB in the beginning and 173.1 MB in the end (delta: -73.5 MB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:54:13,550 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 04:54:13,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.38 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 157.0 MB in the end (delta: -57.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-12-19 04:54:13,551 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.78 ms. Allocated memory is still 200.8 MB. Free memory was 157.0 MB in the beginning and 154.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:54:13,552 INFO L168 Benchmark]: Boogie Preprocessor took 28.85 ms. Allocated memory is still 200.8 MB. Free memory was 154.9 MB in the beginning and 153.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:54:13,558 INFO L168 Benchmark]: RCFGBuilder took 499.70 ms. Allocated memory is still 200.8 MB. Free memory was 153.5 MB in the beginning and 131.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:54:13,559 INFO L168 Benchmark]: TraceAbstraction took 4426.79 ms. Allocated memory was 200.8 MB in the beginning and 315.6 MB in the end (delta: 114.8 MB). Free memory was 130.8 MB in the beginning and 173.1 MB in the end (delta: -42.4 MB). Peak memory consumption was 72.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:54:13,568 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 687.38 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 157.0 MB in the end (delta: -57.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.78 ms. Allocated memory is still 200.8 MB. Free memory was 157.0 MB in the beginning and 154.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.85 ms. Allocated memory is still 200.8 MB. Free memory was 154.9 MB in the beginning and 153.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 499.70 ms. Allocated memory is still 200.8 MB. Free memory was 153.5 MB in the beginning and 131.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4426.79 ms. Allocated memory was 200.8 MB in the beginning and 315.6 MB in the end (delta: 114.8 MB). Free memory was 130.8 MB in the beginning and 173.1 MB in the end (delta: -42.4 MB). Peak memory consumption was 72.4 MB. 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 5 procedures, 64 locations, 1 error locations. Result: SAFE, OverallTime: 4.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 517 SDtfs, 856 SDslu, 1487 SDs, 0 SdLazy, 197 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5472occurred 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 302 NumberOfCodeBlocks, 302 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 31634 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...