/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:19:12,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:19:12,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:19:12,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:19:12,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:19:12,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:19:12,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:19:12,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:19:12,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:19:12,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:19:12,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:19:12,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:19:12,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:19:12,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:19:12,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:19:12,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:19:12,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:19:12,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:19:12,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:19:12,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:19:12,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:19:12,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:19:12,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:19:12,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:19:12,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:19:12,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:19:12,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:19:12,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:19:12,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:19:12,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:19:12,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:19:12,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:19:12,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:19:12,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:19:12,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:19:12,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:19:12,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:19:12,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:19:12,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:19:12,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:19:12,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:19:12,441 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-SemanticLbe.epf [2020-10-15 22:19:12,484 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:19:12,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:19:12,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:19:12,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:19:12,487 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:19:12,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:19:12,488 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:19:12,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:19:12,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:19:12,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:19:12,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:19:12,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:19:12,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:19:12,490 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:19:12,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:19:12,491 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:19:12,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:19:12,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:19:12,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:19:12,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:19:12,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:19:12,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:19:12,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:19:12,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:19:12,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:19:12,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:19:12,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:19:12,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:19:12,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:19:12,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:19:12,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:19:12,869 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:19:12,871 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:19:12,873 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:19:12,874 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-10-15 22:19:12,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e50fa0df/eaa4f18d53584751b7cd1bc5fc18054f/FLAGea6f6c367 [2020-10-15 22:19:13,491 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:19:13,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-10-15 22:19:13,516 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e50fa0df/eaa4f18d53584751b7cd1bc5fc18054f/FLAGea6f6c367 [2020-10-15 22:19:13,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e50fa0df/eaa4f18d53584751b7cd1bc5fc18054f [2020-10-15 22:19:13,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:19:13,803 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:19:13,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:19:13,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:19:13,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:19:13,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7292da3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13, skipping insertion in model container [2020-10-15 22:19:13,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:19:13,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:19:14,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:19:14,430 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:19:14,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:19:14,560 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:19:14,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:14 WrapperNode [2020-10-15 22:19:14,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:19:14,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:19:14,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:19:14,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:19:14,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:14" (1/1) ... [2020-10-15 22:19:14,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:14" (1/1) ... [2020-10-15 22:19:14,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:19:14,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:19:14,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:19:14,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:19:14,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:14" (1/1) ... [2020-10-15 22:19:14,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:14" (1/1) ... [2020-10-15 22:19:14,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:14" (1/1) ... [2020-10-15 22:19:14,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:14" (1/1) ... [2020-10-15 22:19:14,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:14" (1/1) ... [2020-10-15 22:19:14,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:14" (1/1) ... [2020-10-15 22:19:14,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:14" (1/1) ... [2020-10-15 22:19:14,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:19:14,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:19:14,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:19:14,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:19:14,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:14" (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 22:19:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:19:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:19:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:19:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:19:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:19:14,711 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:19:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:19:14,712 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:19:14,712 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:19:14,712 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:19:14,712 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 22:19:14,712 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 22:19:14,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:19:14,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:19:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:19:14,715 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 22:19:15,092 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:19:15,092 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:19:15,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:19:15 BoogieIcfgContainer [2020-10-15 22:19:15,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:19:15,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:19:15,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:19:15,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:19:15,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:19:13" (1/3) ... [2020-10-15 22:19:15,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2578b324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:19:15, skipping insertion in model container [2020-10-15 22:19:15,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:14" (2/3) ... [2020-10-15 22:19:15,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2578b324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:19:15, skipping insertion in model container [2020-10-15 22:19:15,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:19:15" (3/3) ... [2020-10-15 22:19:15,104 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2020-10-15 22:19:15,116 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:19:15,116 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:19:15,124 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:19:15,125 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:19:15,154 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,155 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,155 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,156 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,157 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,157 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,157 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,158 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,158 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,158 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,159 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,159 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,159 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,159 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,160 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,160 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,160 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,160 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,161 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,161 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,161 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,165 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,165 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,166 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,175 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,176 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,182 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,182 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:15,198 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 22:19:15,219 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:15,220 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:15,220 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:15,220 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:15,220 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:15,220 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:15,220 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:15,220 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:15,233 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:15,235 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-15 22:19:15,238 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-15 22:19:15,239 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-15 22:19:15,292 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-15 22:19:15,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:19:15,299 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-15 22:19:15,303 INFO L117 LiptonReduction]: Number of co-enabled transitions 2016 [2020-10-15 22:19:16,906 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-15 22:19:16,974 INFO L132 LiptonReduction]: Checked pairs total: 4737 [2020-10-15 22:19:16,974 INFO L134 LiptonReduction]: Total number of compositions: 68 [2020-10-15 22:19:16,981 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-15 22:19:17,073 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-15 22:19:17,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-15 22:19:17,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:19:17,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:17,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:17,087 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:17,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:17,094 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-10-15 22:19:17,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:17,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608571079] [2020-10-15 22:19:17,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:17,279 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 22:19:17,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608571079] [2020-10-15 22:19:17,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:17,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:17,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864506641] [2020-10-15 22:19:17,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 22:19:17,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:17,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 22:19:17,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:19:17,304 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-15 22:19:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:17,380 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-15 22:19:17,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 22:19:17,383 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-15 22:19:17,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:17,417 INFO L225 Difference]: With dead ends: 1450 [2020-10-15 22:19:17,417 INFO L226 Difference]: Without dead ends: 1194 [2020-10-15 22:19:17,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:19:17,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-15 22:19:17,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-15 22:19:17,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-15 22:19:17,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-15 22:19:17,578 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-15 22:19:17,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:17,580 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-15 22:19:17,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 22:19:17,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-15 22:19:17,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:19:17,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:17,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:17,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:19:17,594 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:17,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:17,599 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-10-15 22:19:17,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:17,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721523025] [2020-10-15 22:19:17,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:17,781 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 22:19:17,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721523025] [2020-10-15 22:19:17,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:17,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:17,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412126256] [2020-10-15 22:19:17,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:19:17,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:17,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:19:17,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:17,785 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-15 22:19:17,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:17,828 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-15 22:19:17,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:19:17,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 22:19:17,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:17,839 INFO L225 Difference]: With dead ends: 1322 [2020-10-15 22:19:17,839 INFO L226 Difference]: Without dead ends: 1066 [2020-10-15 22:19:17,840 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 22:19:17,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-15 22:19:17,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-15 22:19:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-15 22:19:17,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-15 22:19:17,884 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-15 22:19:17,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:17,885 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-15 22:19:17,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:19:17,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-15 22:19:17,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:19:17,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:17,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:17,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:19:17,887 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:17,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:17,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1527944373, now seen corresponding path program 1 times [2020-10-15 22:19:17,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:17,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90829854] [2020-10-15 22:19:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:17,955 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 22:19:17,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90829854] [2020-10-15 22:19:17,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:17,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:17,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705668219] [2020-10-15 22:19:17,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:19:17,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:17,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:19:17,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:17,958 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-15 22:19:17,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:17,988 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-15 22:19:17,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:19:17,989 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 22:19:17,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:17,997 INFO L225 Difference]: With dead ends: 1162 [2020-10-15 22:19:17,997 INFO L226 Difference]: Without dead ends: 970 [2020-10-15 22:19:17,998 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 22:19:18,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-15 22:19:18,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-15 22:19:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-15 22:19:18,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-15 22:19:18,035 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-15 22:19:18,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:18,035 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-15 22:19:18,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:19:18,036 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-15 22:19:18,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:19:18,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:18,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:18,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:19:18,038 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:18,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:18,038 INFO L82 PathProgramCache]: Analyzing trace with hash -121660302, now seen corresponding path program 1 times [2020-10-15 22:19:18,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:18,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663880443] [2020-10-15 22:19:18,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:18,117 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 22:19:18,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663880443] [2020-10-15 22:19:18,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:18,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:18,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954602290] [2020-10-15 22:19:18,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:18,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:18,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:18,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:18,122 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 5 states. [2020-10-15 22:19:18,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:18,175 INFO L93 Difference]: Finished difference Result 1162 states and 3980 transitions. [2020-10-15 22:19:18,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:18,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:19:18,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:18,180 INFO L225 Difference]: With dead ends: 1162 [2020-10-15 22:19:18,181 INFO L226 Difference]: Without dead ends: 634 [2020-10-15 22:19:18,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:19:18,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-15 22:19:18,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-15 22:19:18,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-15 22:19:18,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2052 transitions. [2020-10-15 22:19:18,203 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2052 transitions. Word has length 13 [2020-10-15 22:19:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:18,204 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 2052 transitions. [2020-10-15 22:19:18,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2052 transitions. [2020-10-15 22:19:18,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:18,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:18,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:18,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:19:18,206 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:18,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:18,206 INFO L82 PathProgramCache]: Analyzing trace with hash -952650144, now seen corresponding path program 1 times [2020-10-15 22:19:18,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:18,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179535275] [2020-10-15 22:19:18,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:18,270 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 22:19:18,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179535275] [2020-10-15 22:19:18,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:18,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:18,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195935718] [2020-10-15 22:19:18,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:18,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:18,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:18,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:18,273 INFO L87 Difference]: Start difference. First operand 634 states and 2052 transitions. Second operand 5 states. [2020-10-15 22:19:18,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:18,322 INFO L93 Difference]: Finished difference Result 850 states and 2690 transitions. [2020-10-15 22:19:18,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:18,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 22:19:18,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:18,326 INFO L225 Difference]: With dead ends: 850 [2020-10-15 22:19:18,327 INFO L226 Difference]: Without dead ends: 394 [2020-10-15 22:19:18,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:19:18,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-15 22:19:18,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-15 22:19:18,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-15 22:19:18,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1168 transitions. [2020-10-15 22:19:18,342 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1168 transitions. Word has length 15 [2020-10-15 22:19:18,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:18,343 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1168 transitions. [2020-10-15 22:19:18,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:18,343 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1168 transitions. [2020-10-15 22:19:18,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 22:19:18,344 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:18,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:18,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:19:18,345 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:18,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:18,346 INFO L82 PathProgramCache]: Analyzing trace with hash 120484504, now seen corresponding path program 1 times [2020-10-15 22:19:18,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:18,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659404153] [2020-10-15 22:19:18,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:18,405 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 22:19:18,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659404153] [2020-10-15 22:19:18,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:18,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:18,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902119256] [2020-10-15 22:19:18,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:19:18,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:18,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:19:18,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:18,408 INFO L87 Difference]: Start difference. First operand 394 states and 1168 transitions. Second operand 4 states. [2020-10-15 22:19:18,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:18,434 INFO L93 Difference]: Finished difference Result 418 states and 1208 transitions. [2020-10-15 22:19:18,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:19:18,434 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-15 22:19:18,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:18,438 INFO L225 Difference]: With dead ends: 418 [2020-10-15 22:19:18,438 INFO L226 Difference]: Without dead ends: 370 [2020-10-15 22:19:18,438 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 22:19:18,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-15 22:19:18,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2020-10-15 22:19:18,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-15 22:19:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1080 transitions. [2020-10-15 22:19:18,477 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1080 transitions. Word has length 16 [2020-10-15 22:19:18,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:18,478 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1080 transitions. [2020-10-15 22:19:18,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:19:18,478 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1080 transitions. [2020-10-15 22:19:18,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:19:18,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:18,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:18,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:19:18,480 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:18,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:18,481 INFO L82 PathProgramCache]: Analyzing trace with hash 263975146, now seen corresponding path program 1 times [2020-10-15 22:19:18,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:18,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952185785] [2020-10-15 22:19:18,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:18,569 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 22:19:18,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952185785] [2020-10-15 22:19:18,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:18,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:18,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87770893] [2020-10-15 22:19:18,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:18,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:18,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:18,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:18,572 INFO L87 Difference]: Start difference. First operand 370 states and 1080 transitions. Second operand 5 states. [2020-10-15 22:19:18,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:18,618 INFO L93 Difference]: Finished difference Result 430 states and 1240 transitions. [2020-10-15 22:19:18,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:18,619 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 22:19:18,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:18,621 INFO L225 Difference]: With dead ends: 430 [2020-10-15 22:19:18,621 INFO L226 Difference]: Without dead ends: 172 [2020-10-15 22:19:18,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:19:18,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-15 22:19:18,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-10-15 22:19:18,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-15 22:19:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 452 transitions. [2020-10-15 22:19:18,628 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 452 transitions. Word has length 17 [2020-10-15 22:19:18,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:18,628 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 452 transitions. [2020-10-15 22:19:18,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:18,628 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 452 transitions. [2020-10-15 22:19:18,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:19:18,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:18,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:18,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:19:18,630 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:18,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:18,630 INFO L82 PathProgramCache]: Analyzing trace with hash -180488596, now seen corresponding path program 1 times [2020-10-15 22:19:18,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:18,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992680088] [2020-10-15 22:19:18,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:18,678 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 22:19:18,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992680088] [2020-10-15 22:19:18,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:18,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:18,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401709176] [2020-10-15 22:19:18,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:18,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:18,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:18,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:18,681 INFO L87 Difference]: Start difference. First operand 172 states and 452 transitions. Second operand 5 states. [2020-10-15 22:19:18,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:18,710 INFO L93 Difference]: Finished difference Result 148 states and 376 transitions. [2020-10-15 22:19:18,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:18,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-15 22:19:18,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:18,711 INFO L225 Difference]: With dead ends: 148 [2020-10-15 22:19:18,711 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:19:18,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:19:18,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:19:18,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:19:18,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:19:18,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:19:18,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-15 22:19:18,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:18,713 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:19:18,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:18,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:19:18,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:19:18,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:19:18,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:19:18 BasicIcfg [2020-10-15 22:19:18,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:19:18,720 INFO L168 Benchmark]: Toolchain (without parser) took 4917.04 ms. Allocated memory was 249.0 MB in the beginning and 427.3 MB in the end (delta: 178.3 MB). Free memory was 205.0 MB in the beginning and 353.8 MB in the end (delta: -148.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,721 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 249.0 MB. Free memory was 227.1 MB in the beginning and 226.3 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.43 ms. Allocated memory was 249.0 MB in the beginning and 308.8 MB in the end (delta: 59.8 MB). Free memory was 204.2 MB in the beginning and 262.7 MB in the end (delta: -58.5 MB). Peak memory consumption was 31.2 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,723 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.95 ms. Allocated memory is still 308.8 MB. Free memory was 262.7 MB in the beginning and 260.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,723 INFO L168 Benchmark]: Boogie Preprocessor took 28.37 ms. Allocated memory is still 308.8 MB. Free memory was 260.2 MB in the beginning and 258.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,724 INFO L168 Benchmark]: RCFGBuilder took 452.49 ms. Allocated memory is still 308.8 MB. Free memory was 258.5 MB in the beginning and 234.0 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,725 INFO L168 Benchmark]: TraceAbstraction took 3621.24 ms. Allocated memory was 308.8 MB in the beginning and 427.3 MB in the end (delta: 118.5 MB). Free memory was 233.1 MB in the beginning and 353.8 MB in the end (delta: -120.7 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:19:18,729 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 249.0 MB. Free memory was 227.1 MB in the beginning and 226.3 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 757.43 ms. Allocated memory was 249.0 MB in the beginning and 308.8 MB in the end (delta: 59.8 MB). Free memory was 204.2 MB in the beginning and 262.7 MB in the end (delta: -58.5 MB). Peak memory consumption was 31.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 51.95 ms. Allocated memory is still 308.8 MB. Free memory was 262.7 MB in the beginning and 260.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.37 ms. Allocated memory is still 308.8 MB. Free memory was 260.2 MB in the beginning and 258.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 452.49 ms. Allocated memory is still 308.8 MB. Free memory was 258.5 MB in the beginning and 234.0 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3621.24 ms. Allocated memory was 308.8 MB in the beginning and 427.3 MB in the end (delta: 118.5 MB). Free memory was 233.1 MB in the beginning and 353.8 MB in the end (delta: -120.7 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1437 VarBasedMoverChecksPositive, 59 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 188 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 97 PlacesBefore, 41 PlacesAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, 4737 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 232 SDtfs, 262 SDslu, 320 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 4169 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...