/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:30:22,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:30:22,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:30:22,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:30:22,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:30:22,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:30:22,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:30:22,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:30:22,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:30:22,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:30:22,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:30:22,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:30:22,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:30:22,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:30:22,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:30:22,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:30:22,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:30:22,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:30:22,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:30:22,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:30:22,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:30:22,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:30:22,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:30:22,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:30:22,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:30:22,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:30:22,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:30:22,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:30:22,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:30:22,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:30:22,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:30:22,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:30:22,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:30:22,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:30:22,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:30:22,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:30:22,514 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:30:22,536 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:30:22,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:30:22,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:30:22,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:30:22,537 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:30:22,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:30:22,538 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:30:22,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:30:22,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:30:22,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:30:22,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:30:22,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:30:22,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:30:22,539 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:30:22,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:30:22,540 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:30:22,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:30:22,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:30:22,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:30:22,540 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:30:22,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:30:22,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:30:22,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:30:22,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:30:22,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:30:22,542 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:30:22,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:30:22,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:30:22,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:30:22,542 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:30:22,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:30:22,827 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:30:22,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:30:22,832 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:30:22,832 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:30:22,833 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-10-15 18:30:22,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1488d7d9/bcbfcb77effd41138276e38456fe049f/FLAG815d49f28 [2020-10-15 18:30:23,364 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:30:23,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-10-15 18:30:23,379 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1488d7d9/bcbfcb77effd41138276e38456fe049f/FLAG815d49f28 [2020-10-15 18:30:23,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1488d7d9/bcbfcb77effd41138276e38456fe049f [2020-10-15 18:30:23,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:30:23,723 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:30:23,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:30:23,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:30:23,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:30:23,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:30:23" (1/1) ... [2020-10-15 18:30:23,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132a106a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:23, skipping insertion in model container [2020-10-15 18:30:23,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:30:23" (1/1) ... [2020-10-15 18:30:23,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:30:23,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:30:24,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:30:24,206 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:30:24,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:30:24,322 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:30:24,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24 WrapperNode [2020-10-15 18:30:24,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:30:24,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:30:24,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:30:24,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:30:24,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 18:30:24,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 18:30:24,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:30:24,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:30:24,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:30:24,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:30:24,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 18:30:24,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 18:30:24,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 18:30:24,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 18:30:24,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 18:30:24,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 18:30:24,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 18:30:24,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:30:24,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:30:24,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:30:24,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:30:24,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (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 [2020-10-15 18:30:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:30:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:30:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:30:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:30:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:30:24,504 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:30:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:30:24,505 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:30:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:30:24,505 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:30:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:30:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:30:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:30:24,507 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:30:24,852 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:30:24,853 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:30:24,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:30:24 BoogieIcfgContainer [2020-10-15 18:30:24,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:30:24,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:30:24,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:30:24,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:30:24,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:30:23" (1/3) ... [2020-10-15 18:30:24,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4728559d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:30:24, skipping insertion in model container [2020-10-15 18:30:24,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (2/3) ... [2020-10-15 18:30:24,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4728559d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:30:24, skipping insertion in model container [2020-10-15 18:30:24,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:30:24" (3/3) ... [2020-10-15 18:30:24,863 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-10-15 18:30:24,872 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:30:24,872 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:30:24,878 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:30:24,879 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:30:24,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,908 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,908 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,910 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,910 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,910 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,910 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,911 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,911 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,911 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,912 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,912 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,912 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,913 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,913 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,917 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,917 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,926 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,926 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,926 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,927 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,929 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,929 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,930 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:30:24,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:30:24,965 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:30:24,966 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:30:24,966 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:30:24,966 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:30:24,966 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:30:24,967 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:30:24,967 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:30:24,967 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:30:24,979 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:30:24,982 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:30:24,985 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:30:24,987 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-15 18:30:25,029 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-15 18:30:25,029 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:30:25,034 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 18:30:25,037 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 18:30:26,544 INFO L132 LiptonReduction]: Checked pairs total: 2810 [2020-10-15 18:30:26,544 INFO L134 LiptonReduction]: Total number of compositions: 60 [2020-10-15 18:30:26,553 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-15 18:30:26,605 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 18:30:26,607 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 18:30:26,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:30:26,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:30:26,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:30:26,638 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:30:26,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:30:26,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-10-15 18:30:26,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:30:26,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165707358] [2020-10-15 18:30:26,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:30:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:30:26,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:30:26,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165707358] [2020-10-15 18:30:26,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:30:26,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:30:26,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576978925] [2020-10-15 18:30:26,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:30:26,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:30:26,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:30:26,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:30:26,885 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 18:30:26,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:30:26,948 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-15 18:30:26,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:30:26,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 18:30:26,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:30:26,965 INFO L225 Difference]: With dead ends: 290 [2020-10-15 18:30:26,965 INFO L226 Difference]: Without dead ends: 226 [2020-10-15 18:30:26,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:30:26,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-15 18:30:27,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-15 18:30:27,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-15 18:30:27,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-15 18:30:27,030 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-15 18:30:27,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:30:27,031 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-15 18:30:27,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:30:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-15 18:30:27,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:30:27,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:30:27,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:30:27,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:30:27,034 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:30:27,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:30:27,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-10-15 18:30:27,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:30:27,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030842209] [2020-10-15 18:30:27,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:30:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:30:27,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:30:27,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030842209] [2020-10-15 18:30:27,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:30:27,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:30:27,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706499754] [2020-10-15 18:30:27,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:30:27,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:30:27,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:30:27,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:30:27,122 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-15 18:30:27,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:30:27,132 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-10-15 18:30:27,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:30:27,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-15 18:30:27,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:30:27,135 INFO L225 Difference]: With dead ends: 214 [2020-10-15 18:30:27,136 INFO L226 Difference]: Without dead ends: 214 [2020-10-15 18:30:27,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:30:27,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-15 18:30:27,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-15 18:30:27,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-15 18:30:27,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-10-15 18:30:27,157 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-10-15 18:30:27,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:30:27,157 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-10-15 18:30:27,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:30:27,158 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-10-15 18:30:27,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:30:27,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:30:27,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:30:27,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:30:27,160 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:30:27,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:30:27,160 INFO L82 PathProgramCache]: Analyzing trace with hash -2042509488, now seen corresponding path program 1 times [2020-10-15 18:30:27,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:30:27,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249949769] [2020-10-15 18:30:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:30:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:30:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:30:27,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249949769] [2020-10-15 18:30:27,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:30:27,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:30:27,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016621272] [2020-10-15 18:30:27,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:30:27,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:30:27,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:30:27,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:30:27,237 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states. [2020-10-15 18:30:27,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:30:27,260 INFO L93 Difference]: Finished difference Result 254 states and 660 transitions. [2020-10-15 18:30:27,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:30:27,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 18:30:27,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:30:27,262 INFO L225 Difference]: With dead ends: 254 [2020-10-15 18:30:27,262 INFO L226 Difference]: Without dead ends: 134 [2020-10-15 18:30:27,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:30:27,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-15 18:30:27,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-10-15 18:30:27,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-15 18:30:27,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 326 transitions. [2020-10-15 18:30:27,273 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 326 transitions. Word has length 10 [2020-10-15 18:30:27,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:30:27,273 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 326 transitions. [2020-10-15 18:30:27,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:30:27,274 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 326 transitions. [2020-10-15 18:30:27,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:30:27,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:30:27,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:30:27,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:30:27,275 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:30:27,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:30:27,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1680323254, now seen corresponding path program 1 times [2020-10-15 18:30:27,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:30:27,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082355610] [2020-10-15 18:30:27,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:30:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:30:27,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:30:27,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082355610] [2020-10-15 18:30:27,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:30:27,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:30:27,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075797350] [2020-10-15 18:30:27,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:30:27,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:30:27,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:30:27,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:30:27,335 INFO L87 Difference]: Start difference. First operand 134 states and 326 transitions. Second operand 3 states. [2020-10-15 18:30:27,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:30:27,354 INFO L93 Difference]: Finished difference Result 128 states and 307 transitions. [2020-10-15 18:30:27,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:30:27,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 18:30:27,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:30:27,357 INFO L225 Difference]: With dead ends: 128 [2020-10-15 18:30:27,358 INFO L226 Difference]: Without dead ends: 128 [2020-10-15 18:30:27,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:30:27,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-15 18:30:27,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-15 18:30:27,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-15 18:30:27,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 307 transitions. [2020-10-15 18:30:27,372 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 307 transitions. Word has length 11 [2020-10-15 18:30:27,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:30:27,373 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 307 transitions. [2020-10-15 18:30:27,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:30:27,373 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 307 transitions. [2020-10-15 18:30:27,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:30:27,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:30:27,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:30:27,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:30:27,379 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:30:27,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:30:27,379 INFO L82 PathProgramCache]: Analyzing trace with hash 550400496, now seen corresponding path program 1 times [2020-10-15 18:30:27,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:30:27,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893917380] [2020-10-15 18:30:27,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:30:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:30:27,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:30:27,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893917380] [2020-10-15 18:30:27,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:30:27,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:30:27,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830393186] [2020-10-15 18:30:27,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:30:27,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:30:27,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:30:27,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:30:27,421 INFO L87 Difference]: Start difference. First operand 128 states and 307 transitions. Second operand 3 states. [2020-10-15 18:30:27,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:30:27,426 INFO L93 Difference]: Finished difference Result 122 states and 288 transitions. [2020-10-15 18:30:27,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:30:27,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-15 18:30:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:30:27,429 INFO L225 Difference]: With dead ends: 122 [2020-10-15 18:30:27,429 INFO L226 Difference]: Without dead ends: 122 [2020-10-15 18:30:27,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:30:27,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-15 18:30:27,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-10-15 18:30:27,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-15 18:30:27,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 288 transitions. [2020-10-15 18:30:27,436 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 288 transitions. Word has length 12 [2020-10-15 18:30:27,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:30:27,436 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 288 transitions. [2020-10-15 18:30:27,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:30:27,437 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 288 transitions. [2020-10-15 18:30:27,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:30:27,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:30:27,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:30:27,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:30:27,439 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:30:27,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:30:27,439 INFO L82 PathProgramCache]: Analyzing trace with hash -117499308, now seen corresponding path program 1 times [2020-10-15 18:30:27,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:30:27,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414541375] [2020-10-15 18:30:27,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:30:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:30:27,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:30:27,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414541375] [2020-10-15 18:30:27,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:30:27,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:30:27,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012530226] [2020-10-15 18:30:27,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:30:27,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:30:27,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:30:27,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:30:27,484 INFO L87 Difference]: Start difference. First operand 122 states and 288 transitions. Second operand 4 states. [2020-10-15 18:30:27,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:30:27,511 INFO L93 Difference]: Finished difference Result 184 states and 429 transitions. [2020-10-15 18:30:27,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:30:27,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 18:30:27,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:30:27,513 INFO L225 Difference]: With dead ends: 184 [2020-10-15 18:30:27,513 INFO L226 Difference]: Without dead ends: 130 [2020-10-15 18:30:27,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:30:27,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-15 18:30:27,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 122. [2020-10-15 18:30:27,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-15 18:30:27,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 278 transitions. [2020-10-15 18:30:27,520 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 278 transitions. Word has length 13 [2020-10-15 18:30:27,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:30:27,520 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 278 transitions. [2020-10-15 18:30:27,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:30:27,520 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 278 transitions. [2020-10-15 18:30:27,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:30:27,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:30:27,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:30:27,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:30:27,522 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:30:27,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:30:27,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1997055762, now seen corresponding path program 2 times [2020-10-15 18:30:27,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:30:27,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504290596] [2020-10-15 18:30:27,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:30:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:30:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:30:27,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504290596] [2020-10-15 18:30:27,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:30:27,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:30:27,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90030044] [2020-10-15 18:30:27,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:30:27,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:30:27,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:30:27,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:30:27,563 INFO L87 Difference]: Start difference. First operand 122 states and 278 transitions. Second operand 4 states. [2020-10-15 18:30:27,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:30:27,594 INFO L93 Difference]: Finished difference Result 142 states and 318 transitions. [2020-10-15 18:30:27,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:30:27,595 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 18:30:27,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:30:27,596 INFO L225 Difference]: With dead ends: 142 [2020-10-15 18:30:27,596 INFO L226 Difference]: Without dead ends: 82 [2020-10-15 18:30:27,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:30:27,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-15 18:30:27,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-15 18:30:27,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-15 18:30:27,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 174 transitions. [2020-10-15 18:30:27,602 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 174 transitions. Word has length 13 [2020-10-15 18:30:27,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:30:27,602 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 174 transitions. [2020-10-15 18:30:27,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:30:27,603 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 174 transitions. [2020-10-15 18:30:27,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:30:27,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:30:27,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:30:27,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:30:27,606 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:30:27,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:30:27,607 INFO L82 PathProgramCache]: Analyzing trace with hash 616515302, now seen corresponding path program 1 times [2020-10-15 18:30:27,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:30:27,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952442235] [2020-10-15 18:30:27,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:30:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:30:27,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:30:27,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952442235] [2020-10-15 18:30:27,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:30:27,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:30:27,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025632206] [2020-10-15 18:30:27,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:30:27,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:30:27,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:30:27,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:30:27,677 INFO L87 Difference]: Start difference. First operand 82 states and 174 transitions. Second operand 3 states. [2020-10-15 18:30:27,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:30:27,690 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-10-15 18:30:27,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:30:27,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-15 18:30:27,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:30:27,691 INFO L225 Difference]: With dead ends: 74 [2020-10-15 18:30:27,691 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:30:27,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:30:27,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:30:27,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:30:27,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:30:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:30:27,694 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-15 18:30:27,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:30:27,694 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:30:27,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:30:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:30:27,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:30:27,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:30:27,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:30:27 BasicIcfg [2020-10-15 18:30:27,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:30:27,708 INFO L168 Benchmark]: Toolchain (without parser) took 3981.65 ms. Allocated memory was 251.1 MB in the beginning and 371.2 MB in the end (delta: 120.1 MB). Free memory was 206.8 MB in the beginning and 260.7 MB in the end (delta: -53.9 MB). Peak memory consumption was 66.1 MB. Max. memory is 14.2 GB. [2020-10-15 18:30:27,709 INFO L168 Benchmark]: CDTParser took 1.11 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:30:27,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 600.47 ms. Allocated memory was 251.1 MB in the beginning and 313.5 MB in the end (delta: 62.4 MB). Free memory was 206.8 MB in the beginning and 264.4 MB in the end (delta: -57.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:30:27,717 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.63 ms. Allocated memory is still 313.5 MB. Free memory was 264.4 MB in the beginning and 261.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:30:27,717 INFO L168 Benchmark]: Boogie Preprocessor took 43.47 ms. Allocated memory is still 313.5 MB. Free memory was 261.9 MB in the beginning and 259.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:30:27,720 INFO L168 Benchmark]: RCFGBuilder took 409.88 ms. Allocated memory is still 313.5 MB. Free memory was 259.4 MB in the beginning and 237.5 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:30:27,723 INFO L168 Benchmark]: TraceAbstraction took 2845.61 ms. Allocated memory was 313.5 MB in the beginning and 371.2 MB in the end (delta: 57.7 MB). Free memory was 237.5 MB in the beginning and 260.7 MB in the end (delta: -23.2 MB). Peak memory consumption was 34.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:30:27,727 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 600.47 ms. Allocated memory was 251.1 MB in the beginning and 313.5 MB in the end (delta: 62.4 MB). Free memory was 206.8 MB in the beginning and 264.4 MB in the end (delta: -57.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 74.63 ms. Allocated memory is still 313.5 MB. Free memory was 264.4 MB in the beginning and 261.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 43.47 ms. Allocated memory is still 313.5 MB. Free memory was 261.9 MB in the beginning and 259.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 409.88 ms. Allocated memory is still 313.5 MB. Free memory was 259.4 MB in the beginning and 237.5 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2845.61 ms. Allocated memory was 313.5 MB in the beginning and 371.2 MB in the end (delta: 57.7 MB). Free memory was 237.5 MB in the beginning and 260.7 MB in the end (delta: -23.2 MB). Peak memory consumption was 34.5 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 850 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 69 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 60 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 7]: 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 144 SDtfs, 81 SDslu, 119 SDs, 0 SdLazy, 46 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 8 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2334 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...