/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/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 14:21:33,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 14:21:33,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 14:21:33,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 14:21:33,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 14:21:33,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 14:21:33,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 14:21:33,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 14:21:33,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 14:21:33,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 14:21:33,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 14:21:33,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 14:21:33,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 14:21:33,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 14:21:33,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 14:21:33,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 14:21:33,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 14:21:33,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 14:21:33,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 14:21:33,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 14:21:33,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 14:21:33,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 14:21:33,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 14:21:33,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 14:21:33,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 14:21:33,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 14:21:33,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 14:21:33,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 14:21:33,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 14:21:33,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 14:21:33,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 14:21:33,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 14:21:33,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 14:21:33,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 14:21:33,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 14:21:33,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 14:21:33,451 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 [2019-12-27 14:21:33,475 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 14:21:33,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 14:21:33,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 14:21:33,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 14:21:33,479 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 14:21:33,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 14:21:33,479 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 14:21:33,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 14:21:33,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 14:21:33,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 14:21:33,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 14:21:33,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 14:21:33,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 14:21:33,482 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 14:21:33,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 14:21:33,482 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 14:21:33,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 14:21:33,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 14:21:33,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 14:21:33,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 14:21:33,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 14:21:33,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:21:33,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 14:21:33,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 14:21:33,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 14:21:33,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 14:21:33,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 14:21:33,485 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 14:21:33,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 14:21:33,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 14:21:33,767 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 14:21:33,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 14:21:33,783 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 14:21:33,785 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 14:21:33,785 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 14:21:33,786 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2019-12-27 14:21:33,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9974559/82062e0a63df4080afc0ea57746a1564/FLAG972957e0d [2019-12-27 14:21:34,393 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 14:21:34,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2019-12-27 14:21:34,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9974559/82062e0a63df4080afc0ea57746a1564/FLAG972957e0d [2019-12-27 14:21:34,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9974559/82062e0a63df4080afc0ea57746a1564 [2019-12-27 14:21:34,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 14:21:34,689 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 14:21:34,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 14:21:34,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 14:21:34,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 14:21:34,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:21:34" (1/1) ... [2019-12-27 14:21:34,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c507e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:34, skipping insertion in model container [2019-12-27 14:21:34,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:21:34" (1/1) ... [2019-12-27 14:21:34,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 14:21:34,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 14:21:35,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:21:35,261 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 14:21:35,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:21:35,399 INFO L208 MainTranslator]: Completed translation [2019-12-27 14:21:35,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:35 WrapperNode [2019-12-27 14:21:35,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 14:21:35,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 14:21:35,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 14:21:35,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 14:21:35,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:35" (1/1) ... [2019-12-27 14:21:35,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:35" (1/1) ... [2019-12-27 14:21:35,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 14:21:35,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 14:21:35,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 14:21:35,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 14:21:35,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:35" (1/1) ... [2019-12-27 14:21:35,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:35" (1/1) ... [2019-12-27 14:21:35,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:35" (1/1) ... [2019-12-27 14:21:35,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:35" (1/1) ... [2019-12-27 14:21:35,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:35" (1/1) ... [2019-12-27 14:21:35,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:35" (1/1) ... [2019-12-27 14:21:35,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:35" (1/1) ... [2019-12-27 14:21:35,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 14:21:35,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 14:21:35,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 14:21:35,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 14:21:35,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:35" (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 [2019-12-27 14:21:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 14:21:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 14:21:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 14:21:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 14:21:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 14:21:35,549 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 14:21:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 14:21:35,549 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 14:21:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 14:21:35,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 14:21:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-27 14:21:35,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-27 14:21:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 14:21:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 14:21:35,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 14:21:35,552 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 14:21:35,907 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 14:21:35,908 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 14:21:35,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:21:35 BoogieIcfgContainer [2019-12-27 14:21:35,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 14:21:35,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 14:21:35,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 14:21:35,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 14:21:35,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 02:21:34" (1/3) ... [2019-12-27 14:21:35,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ca0ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:21:35, skipping insertion in model container [2019-12-27 14:21:35,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:35" (2/3) ... [2019-12-27 14:21:35,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ca0ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:21:35, skipping insertion in model container [2019-12-27 14:21:35,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:21:35" (3/3) ... [2019-12-27 14:21:35,917 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2019-12-27 14:21:35,926 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 14:21:35,926 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 14:21:35,934 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 14:21:35,935 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 14:21:35,966 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,967 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,967 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,968 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,968 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,968 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,969 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,969 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,969 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,970 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,970 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,970 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,971 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,971 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,971 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,971 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,972 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,972 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,973 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,973 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,973 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,973 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,974 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,974 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,980 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,982 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,982 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,982 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,990 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,990 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,991 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,995 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,996 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,996 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:35,996 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:36,002 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:36,002 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:36,003 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:36,003 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:36,020 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 14:21:36,038 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:21:36,038 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:21:36,039 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:21:36,039 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:21:36,039 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:21:36,039 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:21:36,039 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:21:36,040 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:21:36,056 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 65 transitions [2019-12-27 14:21:36,375 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5473 states. [2019-12-27 14:21:36,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states. [2019-12-27 14:21:36,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-27 14:21:36,402 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:36,403 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] [2019-12-27 14:21:36,403 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:36,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:36,410 INFO L82 PathProgramCache]: Analyzing trace with hash 433648018, now seen corresponding path program 1 times [2019-12-27 14:21:36,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:36,422 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441604376] [2019-12-27 14:21:36,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:36,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:21:36,830 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441604376] [2019-12-27 14:21:36,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:36,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 14:21:36,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727306157] [2019-12-27 14:21:36,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 14:21:36,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:36,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 14:21:36,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 14:21:36,851 INFO L87 Difference]: Start difference. First operand 5473 states. Second operand 4 states. [2019-12-27 14:21:37,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:37,044 INFO L93 Difference]: Finished difference Result 5710 states and 21935 transitions. [2019-12-27 14:21:37,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 14:21:37,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-12-27 14:21:37,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:37,090 INFO L225 Difference]: With dead ends: 5710 [2019-12-27 14:21:37,091 INFO L226 Difference]: Without dead ends: 2394 [2019-12-27 14:21:37,093 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 [2019-12-27 14:21:37,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2019-12-27 14:21:37,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2394. [2019-12-27 14:21:37,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2394 states. [2019-12-27 14:21:37,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 8938 transitions. [2019-12-27 14:21:37,317 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 8938 transitions. Word has length 36 [2019-12-27 14:21:37,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:37,318 INFO L462 AbstractCegarLoop]: Abstraction has 2394 states and 8938 transitions. [2019-12-27 14:21:37,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 14:21:37,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 8938 transitions. [2019-12-27 14:21:37,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-27 14:21:37,324 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:37,325 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] [2019-12-27 14:21:37,325 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:37,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:37,326 INFO L82 PathProgramCache]: Analyzing trace with hash -895431090, now seen corresponding path program 1 times [2019-12-27 14:21:37,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:37,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46327439] [2019-12-27 14:21:37,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:37,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:21:37,531 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46327439] [2019-12-27 14:21:37,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:37,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 14:21:37,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997029848] [2019-12-27 14:21:37,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 14:21:37,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:37,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 14:21:37,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:21:37,535 INFO L87 Difference]: Start difference. First operand 2394 states and 8938 transitions. Second operand 5 states. [2019-12-27 14:21:37,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:37,666 INFO L93 Difference]: Finished difference Result 2565 states and 9322 transitions. [2019-12-27 14:21:37,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 14:21:37,667 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-12-27 14:21:37,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:37,689 INFO L225 Difference]: With dead ends: 2565 [2019-12-27 14:21:37,689 INFO L226 Difference]: Without dead ends: 2310 [2019-12-27 14:21:37,691 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:21:37,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2019-12-27 14:21:37,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2310. [2019-12-27 14:21:37,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2310 states. [2019-12-27 14:21:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 8546 transitions. [2019-12-27 14:21:37,807 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 8546 transitions. Word has length 37 [2019-12-27 14:21:37,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:37,808 INFO L462 AbstractCegarLoop]: Abstraction has 2310 states and 8546 transitions. [2019-12-27 14:21:37,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 14:21:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 8546 transitions. [2019-12-27 14:21:37,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-27 14:21:37,814 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:37,814 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] [2019-12-27 14:21:37,815 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:37,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:37,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1455477097, now seen corresponding path program 1 times [2019-12-27 14:21:37,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:37,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103700447] [2019-12-27 14:21:37,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:38,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:21:38,029 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103700447] [2019-12-27 14:21:38,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:38,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:21:38,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281963572] [2019-12-27 14:21:38,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:21:38,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:38,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:21:38,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:21:38,032 INFO L87 Difference]: Start difference. First operand 2310 states and 8546 transitions. Second operand 6 states. [2019-12-27 14:21:38,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:38,158 INFO L93 Difference]: Finished difference Result 2175 states and 7682 transitions. [2019-12-27 14:21:38,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:21:38,159 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-12-27 14:21:38,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:38,175 INFO L225 Difference]: With dead ends: 2175 [2019-12-27 14:21:38,175 INFO L226 Difference]: Without dead ends: 1932 [2019-12-27 14:21:38,176 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 [2019-12-27 14:21:38,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2019-12-27 14:21:38,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1932. [2019-12-27 14:21:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2019-12-27 14:21:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 6908 transitions. [2019-12-27 14:21:38,249 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 6908 transitions. Word has length 38 [2019-12-27 14:21:38,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:38,250 INFO L462 AbstractCegarLoop]: Abstraction has 1932 states and 6908 transitions. [2019-12-27 14:21:38,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:21:38,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 6908 transitions. [2019-12-27 14:21:38,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-27 14:21:38,258 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:38,259 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] [2019-12-27 14:21:38,259 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:38,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:38,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1169485641, now seen corresponding path program 1 times [2019-12-27 14:21:38,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:38,261 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953542742] [2019-12-27 14:21:38,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:21:38,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953542742] [2019-12-27 14:21:38,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:38,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:21:38,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258470086] [2019-12-27 14:21:38,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:21:38,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:38,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:21:38,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:21:38,461 INFO L87 Difference]: Start difference. First operand 1932 states and 6908 transitions. Second operand 7 states. [2019-12-27 14:21:38,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:38,586 INFO L93 Difference]: Finished difference Result 1365 states and 4532 transitions. [2019-12-27 14:21:38,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 14:21:38,586 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-12-27 14:21:38,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:38,595 INFO L225 Difference]: With dead ends: 1365 [2019-12-27 14:21:38,596 INFO L226 Difference]: Without dead ends: 1176 [2019-12-27 14:21:38,596 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 [2019-12-27 14:21:38,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2019-12-27 14:21:38,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1176. [2019-12-27 14:21:38,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2019-12-27 14:21:38,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 3884 transitions. [2019-12-27 14:21:38,635 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 3884 transitions. Word has length 39 [2019-12-27 14:21:38,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:38,636 INFO L462 AbstractCegarLoop]: Abstraction has 1176 states and 3884 transitions. [2019-12-27 14:21:38,636 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:21:38,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 3884 transitions. [2019-12-27 14:21:38,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-27 14:21:38,640 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:38,640 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, 1] [2019-12-27 14:21:38,640 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:38,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:38,640 INFO L82 PathProgramCache]: Analyzing trace with hash -985222538, now seen corresponding path program 1 times [2019-12-27 14:21:38,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:38,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355612127] [2019-12-27 14:21:38,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:21:38,803 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355612127] [2019-12-27 14:21:38,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:38,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 14:21:38,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024022929] [2019-12-27 14:21:38,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 14:21:38,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:38,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 14:21:38,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 14:21:38,805 INFO L87 Difference]: Start difference. First operand 1176 states and 3884 transitions. Second operand 8 states. [2019-12-27 14:21:38,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:38,931 INFO L93 Difference]: Finished difference Result 1725 states and 5777 transitions. [2019-12-27 14:21:38,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:21:38,932 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-12-27 14:21:38,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:38,939 INFO L225 Difference]: With dead ends: 1725 [2019-12-27 14:21:38,939 INFO L226 Difference]: Without dead ends: 876 [2019-12-27 14:21:38,939 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 [2019-12-27 14:21:38,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2019-12-27 14:21:38,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2019-12-27 14:21:38,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-12-27 14:21:38,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2888 transitions. [2019-12-27 14:21:38,967 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2888 transitions. Word has length 40 [2019-12-27 14:21:38,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:38,968 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 2888 transitions. [2019-12-27 14:21:38,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 14:21:38,968 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2888 transitions. [2019-12-27 14:21:38,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-27 14:21:38,970 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:38,970 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, 1] [2019-12-27 14:21:38,971 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:38,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:38,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1459721732, now seen corresponding path program 2 times [2019-12-27 14:21:38,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:38,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883911543] [2019-12-27 14:21:38,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:39,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:21:39,125 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883911543] [2019-12-27 14:21:39,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:39,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:21:39,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714675582] [2019-12-27 14:21:39,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:21:39,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:39,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:21:39,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:21:39,128 INFO L87 Difference]: Start difference. First operand 876 states and 2888 transitions. Second operand 7 states. [2019-12-27 14:21:39,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:39,287 INFO L93 Difference]: Finished difference Result 1389 states and 4670 transitions. [2019-12-27 14:21:39,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:21:39,288 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-27 14:21:39,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:39,293 INFO L225 Difference]: With dead ends: 1389 [2019-12-27 14:21:39,294 INFO L226 Difference]: Without dead ends: 768 [2019-12-27 14:21:39,294 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 [2019-12-27 14:21:39,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-12-27 14:21:39,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2019-12-27 14:21:39,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-12-27 14:21:39,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 2576 transitions. [2019-12-27 14:21:39,319 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 2576 transitions. Word has length 40 [2019-12-27 14:21:39,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:39,319 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 2576 transitions. [2019-12-27 14:21:39,319 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:21:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 2576 transitions. [2019-12-27 14:21:39,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-27 14:21:39,321 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:39,321 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, 1] [2019-12-27 14:21:39,322 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:39,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:39,322 INFO L82 PathProgramCache]: Analyzing trace with hash -353081860, now seen corresponding path program 3 times [2019-12-27 14:21:39,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:39,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244319995] [2019-12-27 14:21:39,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:39,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:21:39,481 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244319995] [2019-12-27 14:21:39,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:39,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:21:39,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272392167] [2019-12-27 14:21:39,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:21:39,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:39,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:21:39,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:21:39,485 INFO L87 Difference]: Start difference. First operand 768 states and 2576 transitions. Second operand 7 states. [2019-12-27 14:21:39,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:39,607 INFO L93 Difference]: Finished difference Result 1254 states and 4277 transitions. [2019-12-27 14:21:39,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:21:39,608 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-27 14:21:39,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:39,613 INFO L225 Difference]: With dead ends: 1254 [2019-12-27 14:21:39,614 INFO L226 Difference]: Without dead ends: 717 [2019-12-27 14:21:39,614 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 [2019-12-27 14:21:39,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-12-27 14:21:39,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2019-12-27 14:21:39,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-12-27 14:21:39,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 2432 transitions. [2019-12-27 14:21:39,637 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 2432 transitions. Word has length 40 [2019-12-27 14:21:39,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:39,637 INFO L462 AbstractCegarLoop]: Abstraction has 717 states and 2432 transitions. [2019-12-27 14:21:39,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:21:39,638 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 2432 transitions. [2019-12-27 14:21:39,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-27 14:21:39,640 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:39,640 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, 1] [2019-12-27 14:21:39,640 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:39,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:39,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1457383704, now seen corresponding path program 4 times [2019-12-27 14:21:39,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:39,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693601285] [2019-12-27 14:21:39,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:39,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:21:39,789 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693601285] [2019-12-27 14:21:39,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:39,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:21:39,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597622983] [2019-12-27 14:21:39,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:21:39,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:39,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:21:39,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:21:39,791 INFO L87 Difference]: Start difference. First operand 717 states and 2432 transitions. Second operand 7 states. [2019-12-27 14:21:39,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:39,932 INFO L93 Difference]: Finished difference Result 555 states and 1838 transitions. [2019-12-27 14:21:39,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 14:21:39,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-27 14:21:39,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:39,933 INFO L225 Difference]: With dead ends: 555 [2019-12-27 14:21:39,933 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 14:21:39,933 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 [2019-12-27 14:21:39,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 14:21:39,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 14:21:39,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 14:21:39,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 14:21:39,934 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-12-27 14:21:39,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:39,934 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 14:21:39,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:21:39,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 14:21:39,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 14:21:39,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 02:21:39 BasicIcfg [2019-12-27 14:21:39,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 14:21:39,943 INFO L168 Benchmark]: Toolchain (without parser) took 5253.33 ms. Allocated memory was 145.8 MB in the beginning and 306.7 MB in the end (delta: 161.0 MB). Free memory was 101.8 MB in the beginning and 147.9 MB in the end (delta: -46.0 MB). Peak memory consumption was 114.9 MB. Max. memory is 7.1 GB. [2019-12-27 14:21:39,944 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 14:21:39,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.74 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 160.0 MB in the end (delta: -58.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-12-27 14:21:39,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.29 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 14:21:39,946 INFO L168 Benchmark]: Boogie Preprocessor took 28.87 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 14:21:39,947 INFO L168 Benchmark]: RCFGBuilder took 426.49 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 134.1 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-12-27 14:21:39,948 INFO L168 Benchmark]: TraceAbstraction took 4030.59 ms. Allocated memory was 203.4 MB in the beginning and 306.7 MB in the end (delta: 103.3 MB). Free memory was 133.5 MB in the beginning and 147.9 MB in the end (delta: -14.4 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. [2019-12-27 14:21:39,952 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.74 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 160.0 MB in the end (delta: -58.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.29 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.87 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 426.49 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 134.1 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4030.59 ms. Allocated memory was 203.4 MB in the beginning and 306.7 MB in the end (delta: 103.3 MB). Free memory was 133.5 MB in the beginning and 147.9 MB in the end (delta: -14.4 MB). Peak memory consumption was 88.9 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, 65 locations, 1 error locations. Result: SAFE, OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 479 SDtfs, 697 SDslu, 1362 SDs, 0 SdLazy, 193 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5473occurred 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, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 35894 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...