/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/safe009_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:31:41,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:31:41,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:31:41,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:31:41,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:31:41,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:31:41,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:31:41,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:31:41,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:31:41,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:31:41,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:31:41,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:31:41,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:31:41,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:31:41,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:31:41,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:31:41,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:31:41,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:31:41,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:31:41,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:31:41,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:31:41,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:31:41,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:31:41,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:31:41,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:31:41,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:31:41,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:31:41,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:31:41,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:31:41,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:31:41,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:31:41,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:31:41,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:31:41,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:31:41,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:31:41,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:31:41,553 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 04:31:41,568 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:31:41,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:31:41,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:31:41,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:31:41,571 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:31:41,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:31:41,571 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:31:41,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:31:41,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:31:41,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:31:41,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:31:41,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:31:41,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:31:41,574 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:31:41,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:31:41,574 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:31:41,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:31:41,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:31:41,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:31:41,575 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:31:41,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:31:41,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:31:41,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:31:41,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:31:41,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:31:41,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:31:41,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:31:41,577 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:31:41,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:31:41,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:31:41,843 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:31:41,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:31:41,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:31:41,873 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:31:41,873 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:31:41,874 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2019-12-19 04:31:41,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46d497465/60809beea74f446e9a0b8d66815c1642/FLAGaca74dfcc [2019-12-19 04:31:42,518 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:31:42,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2019-12-19 04:31:42,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46d497465/60809beea74f446e9a0b8d66815c1642/FLAGaca74dfcc [2019-12-19 04:31:42,810 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46d497465/60809beea74f446e9a0b8d66815c1642 [2019-12-19 04:31:42,820 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:31:42,821 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:31:42,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:31:42,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:31:42,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:31:42,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:31:42" (1/1) ... [2019-12-19 04:31:42,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cfec3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:42, skipping insertion in model container [2019-12-19 04:31:42,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:31:42" (1/1) ... [2019-12-19 04:31:42,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:31:42,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:31:43,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:31:43,334 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:31:43,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:31:43,470 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:31:43,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:43 WrapperNode [2019-12-19 04:31:43,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:31:43,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:31:43,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:31:43,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:31:43,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:43" (1/1) ... [2019-12-19 04:31:43,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:43" (1/1) ... [2019-12-19 04:31:43,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:31:43,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:31:43,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:31:43,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:31:43,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:43" (1/1) ... [2019-12-19 04:31:43,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:43" (1/1) ... [2019-12-19 04:31:43,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:43" (1/1) ... [2019-12-19 04:31:43,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:43" (1/1) ... [2019-12-19 04:31:43,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:43" (1/1) ... [2019-12-19 04:31:43,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:43" (1/1) ... [2019-12-19 04:31:43,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:43" (1/1) ... [2019-12-19 04:31:43,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:31:43,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:31:43,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:31:43,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:31:43,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:43" (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 04:31:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:31:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:31:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:31:43,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:31:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:31:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:31:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:31:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:31:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:31:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:31:43,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:31:43,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:31:43,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:31:43,621 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 04:31:43,988 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:31:43,988 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:31:43,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:31:43 BoogieIcfgContainer [2019-12-19 04:31:43,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:31:43,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:31:43,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:31:43,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:31:43,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:31:42" (1/3) ... [2019-12-19 04:31:43,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467e7804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:31:43, skipping insertion in model container [2019-12-19 04:31:43,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:43" (2/3) ... [2019-12-19 04:31:43,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467e7804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:31:43, skipping insertion in model container [2019-12-19 04:31:43,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:31:43" (3/3) ... [2019-12-19 04:31:43,999 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt.i [2019-12-19 04:31:44,009 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:31:44,010 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:31:44,023 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:31:44,026 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:31:44,061 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,062 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,062 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,062 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,063 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,063 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,064 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,064 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,064 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,064 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,065 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,065 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,066 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,066 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,066 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,066 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,067 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,067 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,071 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,072 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,072 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,072 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,079 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,079 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,079 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,080 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,082 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,083 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,083 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,083 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:31:44,097 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:31:44,117 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:31:44,118 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:31:44,118 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:31:44,118 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:31:44,118 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:31:44,118 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:31:44,119 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:31:44,119 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:31:44,130 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 04:31:44,209 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 04:31:44,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 04:31:44,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:31:44,229 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:31:44,230 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 04:31:44,230 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:31:44,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:31:44,237 INFO L82 PathProgramCache]: Analyzing trace with hash -2004494195, now seen corresponding path program 1 times [2019-12-19 04:31:44,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:31:44,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994685819] [2019-12-19 04:31:44,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:31:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:31:44,660 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 04:31:44,661 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994685819] [2019-12-19 04:31:44,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:31:44,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:31:44,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672156258] [2019-12-19 04:31:44,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:31:44,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:31:44,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:31:44,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:31:44,689 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 04:31:44,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:31:44,865 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 04:31:44,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:31:44,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 04:31:44,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:31:44,898 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 04:31:44,898 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 04:31:44,900 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 04:31:44,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 04:31:45,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 04:31:45,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 04:31:45,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 04:31:45,017 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 04:31:45,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:31:45,017 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 04:31:45,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:31:45,018 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 04:31:45,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:31:45,022 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:31:45,022 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 04:31:45,023 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:31:45,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:31:45,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1881606129, now seen corresponding path program 1 times [2019-12-19 04:31:45,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:31:45,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669506987] [2019-12-19 04:31:45,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:31:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:31:45,198 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 04:31:45,198 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669506987] [2019-12-19 04:31:45,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:31:45,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:31:45,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691457529] [2019-12-19 04:31:45,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:31:45,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:31:45,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:31:45,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:31:45,203 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 04:31:45,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:31:45,276 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 04:31:45,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:31:45,277 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 04:31:45,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:31:45,282 INFO L225 Difference]: With dead ends: 600 [2019-12-19 04:31:45,282 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 04:31:45,283 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 04:31:45,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 04:31:45,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 04:31:45,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 04:31:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 04:31:45,317 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 04:31:45,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:31:45,318 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 04:31:45,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:31:45,318 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 04:31:45,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:31:45,321 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:31:45,322 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 04:31:45,322 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:31:45,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:31:45,322 INFO L82 PathProgramCache]: Analyzing trace with hash 60996499, now seen corresponding path program 1 times [2019-12-19 04:31:45,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:31:45,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429509964] [2019-12-19 04:31:45,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:31:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:31:45,453 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 04:31:45,453 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429509964] [2019-12-19 04:31:45,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:31:45,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:31:45,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867114282] [2019-12-19 04:31:45,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:31:45,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:31:45,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:31:45,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:31:45,455 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 04:31:45,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:31:45,550 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 04:31:45,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:31:45,551 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 04:31:45,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:31:45,554 INFO L225 Difference]: With dead ends: 402 [2019-12-19 04:31:45,554 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 04:31:45,555 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 04:31:45,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 04:31:45,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 04:31:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 04:31:45,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 04:31:45,570 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 04:31:45,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:31:45,570 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 04:31:45,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:31:45,570 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 04:31:45,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:31:45,573 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:31:45,573 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] [2019-12-19 04:31:45,573 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:31:45,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:31:45,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1085599532, now seen corresponding path program 1 times [2019-12-19 04:31:45,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:31:45,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535884200] [2019-12-19 04:31:45,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:31:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:31:45,689 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 04:31:45,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535884200] [2019-12-19 04:31:45,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:31:45,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:31:45,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093187002] [2019-12-19 04:31:45,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:31:45,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:31:45,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:31:45,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:31:45,693 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 6 states. [2019-12-19 04:31:45,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:31:45,807 INFO L93 Difference]: Finished difference Result 519 states and 1394 transitions. [2019-12-19 04:31:45,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:31:45,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:31:45,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:31:45,811 INFO L225 Difference]: With dead ends: 519 [2019-12-19 04:31:45,811 INFO L226 Difference]: Without dead ends: 336 [2019-12-19 04:31:45,813 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:31:45,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-12-19 04:31:45,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2019-12-19 04:31:45,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-12-19 04:31:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 881 transitions. [2019-12-19 04:31:45,829 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 881 transitions. Word has length 33 [2019-12-19 04:31:45,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:31:45,829 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 881 transitions. [2019-12-19 04:31:45,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:31:45,830 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 881 transitions. [2019-12-19 04:31:45,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:31:45,833 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:31:45,833 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] [2019-12-19 04:31:45,833 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:31:45,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:31:45,834 INFO L82 PathProgramCache]: Analyzing trace with hash 2070748178, now seen corresponding path program 2 times [2019-12-19 04:31:45,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:31:45,834 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126062781] [2019-12-19 04:31:45,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:31:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:31:46,067 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 04:31:46,068 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126062781] [2019-12-19 04:31:46,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:31:46,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:31:46,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434236773] [2019-12-19 04:31:46,070 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:31:46,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:31:46,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:31:46,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:31:46,073 INFO L87 Difference]: Start difference. First operand 336 states and 881 transitions. Second operand 8 states. [2019-12-19 04:31:46,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:31:46,268 INFO L93 Difference]: Finished difference Result 543 states and 1445 transitions. [2019-12-19 04:31:46,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:31:46,269 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-12-19 04:31:46,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:31:46,277 INFO L225 Difference]: With dead ends: 543 [2019-12-19 04:31:46,278 INFO L226 Difference]: Without dead ends: 309 [2019-12-19 04:31:46,278 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:31:46,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2019-12-19 04:31:46,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2019-12-19 04:31:46,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-12-19 04:31:46,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 815 transitions. [2019-12-19 04:31:46,290 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 815 transitions. Word has length 33 [2019-12-19 04:31:46,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:31:46,292 INFO L462 AbstractCegarLoop]: Abstraction has 309 states and 815 transitions. [2019-12-19 04:31:46,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:31:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 815 transitions. [2019-12-19 04:31:46,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:31:46,296 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:31:46,297 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] [2019-12-19 04:31:46,301 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:31:46,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:31:46,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1513115848, now seen corresponding path program 3 times [2019-12-19 04:31:46,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:31:46,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290766267] [2019-12-19 04:31:46,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:31:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:31:46,520 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 04:31:46,520 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290766267] [2019-12-19 04:31:46,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:31:46,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:31:46,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170277346] [2019-12-19 04:31:46,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:31:46,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:31:46,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:31:46,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:31:46,522 INFO L87 Difference]: Start difference. First operand 309 states and 815 transitions. Second operand 8 states. [2019-12-19 04:31:46,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:31:46,630 INFO L93 Difference]: Finished difference Result 255 states and 653 transitions. [2019-12-19 04:31:46,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:31:46,630 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-12-19 04:31:46,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:31:46,631 INFO L225 Difference]: With dead ends: 255 [2019-12-19 04:31:46,631 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:31:46,632 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:31:46,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:31:46,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:31:46,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:31:46,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:31:46,632 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 04:31:46,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:31:46,633 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:31:46,633 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:31:46,633 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:31:46,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:31:46,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:31:46 BasicIcfg [2019-12-19 04:31:46,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:31:46,647 INFO L168 Benchmark]: Toolchain (without parser) took 3822.83 ms. Allocated memory was 146.3 MB in the beginning and 249.0 MB in the end (delta: 102.8 MB). Free memory was 102.7 MB in the beginning and 168.0 MB in the end (delta: -65.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:31:46,649 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-19 04:31:46,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.21 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 102.5 MB in the beginning and 161.4 MB in the end (delta: -58.9 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:31:46,656 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.35 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:31:46,657 INFO L168 Benchmark]: Boogie Preprocessor took 25.56 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 158.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:31:46,658 INFO L168 Benchmark]: RCFGBuilder took 441.53 ms. Allocated memory is still 204.5 MB. Free memory was 158.1 MB in the beginning and 137.9 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-19 04:31:46,659 INFO L168 Benchmark]: TraceAbstraction took 2651.20 ms. Allocated memory was 204.5 MB in the beginning and 249.0 MB in the end (delta: 44.6 MB). Free memory was 137.2 MB in the beginning and 168.0 MB in the end (delta: -30.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-12-19 04:31:46,673 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 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.21 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 102.5 MB in the beginning and 161.4 MB in the end (delta: -58.9 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.35 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.56 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 158.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 441.53 ms. Allocated memory is still 204.5 MB. Free memory was 158.1 MB in the beginning and 137.9 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2651.20 ms. Allocated memory was 204.5 MB in the beginning and 249.0 MB in the end (delta: 44.6 MB). Free memory was 137.2 MB in the beginning and 168.0 MB in the end (delta: -30.8 MB). Peak memory consumption was 13.8 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 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 282 SDtfs, 361 SDslu, 748 SDs, 0 SdLazy, 110 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 17306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...