/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:18:24,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:18:24,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:18:24,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:18:24,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:18:24,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:18:24,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:18:24,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:18:24,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:18:24,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:18:24,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:18:24,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:18:24,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:18:24,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:18:24,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:18:24,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:18:24,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:18:24,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:18:24,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:18:24,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:18:24,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:18:24,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:18:24,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:18:24,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:18:24,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:18:24,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:18:24,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:18:24,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:18:24,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:18:24,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:18:24,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:18:24,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:18:24,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:18:24,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:18:24,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:18:24,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:18:24,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:18:24,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:18:24,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:18:24,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:18:24,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:18:24,513 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:18:24,554 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:18:24,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:18:24,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:18:24,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:18:24,558 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:18:24,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:18:24,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:18:24,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:18:24,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:18:24,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:18:24,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:18:24,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:18:24,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:18:24,561 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:18:24,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:18:24,561 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:18:24,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:18:24,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:18:24,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:18:24,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:18:24,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:18:24,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:18:24,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:18:24,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:18:24,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:18:24,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:18:24,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:18:24,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:18:24,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:18:24,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:18:24,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:18:24,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:18:24,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:18:24,864 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:18:24,865 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:18:24,865 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2020-10-16 11:18:24,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89c54c13c/97082588b5e04f798580d4e915765c91/FLAGa1f93e32c [2020-10-16 11:18:25,414 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:18:25,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2020-10-16 11:18:25,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89c54c13c/97082588b5e04f798580d4e915765c91/FLAGa1f93e32c [2020-10-16 11:18:25,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89c54c13c/97082588b5e04f798580d4e915765c91 [2020-10-16 11:18:25,743 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:18:25,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:18:25,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:18:25,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:18:25,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:18:25,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:18:25" (1/1) ... [2020-10-16 11:18:25,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@331f810f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:25, skipping insertion in model container [2020-10-16 11:18:25,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:18:25" (1/1) ... [2020-10-16 11:18:25,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:18:25,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:18:26,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:18:26,314 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:18:26,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:18:26,457 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:18:26,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26 WrapperNode [2020-10-16 11:18:26,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:18:26,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:18:26,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:18:26,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:18:26,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:18:26,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:18:26,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:18:26,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:18:26,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:18:26,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:18:26,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:18:26,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:18:26,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:18:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:18:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:18:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:18:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:18:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:18:26,605 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:18:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:18:26,606 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:18:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:18:26,606 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:18:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:18:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:18:26,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:18:26,613 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:18:26,982 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:18:26,983 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:18:26,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:18:26 BoogieIcfgContainer [2020-10-16 11:18:26,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:18:26,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:18:26,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:18:26,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:18:26,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:18:25" (1/3) ... [2020-10-16 11:18:26,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5564ff7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:18:26, skipping insertion in model container [2020-10-16 11:18:26,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (2/3) ... [2020-10-16 11:18:26,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5564ff7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:18:26, skipping insertion in model container [2020-10-16 11:18:26,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:18:26" (3/3) ... [2020-10-16 11:18:26,995 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt.i [2020-10-16 11:18:27,007 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:18:27,007 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:18:27,016 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:18:27,017 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:18:27,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,044 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,045 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,046 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,047 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,047 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,049 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,049 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,049 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,050 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,050 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,054 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,054 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,055 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,055 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,062 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,063 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,066 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,066 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:27,069 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:18:27,085 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:18:27,108 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:18:27,108 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:18:27,108 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:18:27,109 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:18:27,109 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:18:27,109 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:18:27,109 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:18:27,109 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:18:27,123 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:18:27,125 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 11:18:27,128 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 11:18:27,129 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-16 11:18:27,172 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-16 11:18:27,172 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:18:27,178 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-16 11:18:27,181 INFO L117 LiptonReduction]: Number of co-enabled transitions 1186 [2020-10-16 11:18:28,707 INFO L132 LiptonReduction]: Checked pairs total: 2093 [2020-10-16 11:18:28,707 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-16 11:18:28,715 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-16 11:18:28,739 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-10-16 11:18:28,741 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-10-16 11:18:28,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:18:28,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:28,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:28,750 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:28,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:28,756 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-10-16 11:18:28,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:28,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947816765] [2020-10-16 11:18:28,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:28,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:28,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947816765] [2020-10-16 11:18:28,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:28,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:18:28,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121719275] [2020-10-16 11:18:28,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:29,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:29,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:29,013 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-10-16 11:18:29,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,067 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-10-16 11:18:29,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:29,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:18:29,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,086 INFO L225 Difference]: With dead ends: 222 [2020-10-16 11:18:29,086 INFO L226 Difference]: Without dead ends: 174 [2020-10-16 11:18:29,088 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 [2020-10-16 11:18:29,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-16 11:18:29,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-10-16 11:18:29,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-16 11:18:29,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-10-16 11:18:29,152 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-10-16 11:18:29,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,153 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-10-16 11:18:29,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:29,153 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-10-16 11:18:29,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:18:29,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:18:29,156 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1586119381, now seen corresponding path program 1 times [2020-10-16 11:18:29,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963756887] [2020-10-16 11:18:29,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963756887] [2020-10-16 11:18:29,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:29,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973796854] [2020-10-16 11:18:29,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:29,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:29,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:29,263 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-10-16 11:18:29,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,297 INFO L93 Difference]: Finished difference Result 204 states and 513 transitions. [2020-10-16 11:18:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:18:29,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 11:18:29,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,299 INFO L225 Difference]: With dead ends: 204 [2020-10-16 11:18:29,300 INFO L226 Difference]: Without dead ends: 108 [2020-10-16 11:18:29,301 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 [2020-10-16 11:18:29,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-16 11:18:29,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-16 11:18:29,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-16 11:18:29,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 253 transitions. [2020-10-16 11:18:29,314 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 253 transitions. Word has length 9 [2020-10-16 11:18:29,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,314 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 253 transitions. [2020-10-16 11:18:29,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:29,315 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 253 transitions. [2020-10-16 11:18:29,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:18:29,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:18:29,316 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,317 INFO L82 PathProgramCache]: Analyzing trace with hash 409264718, now seen corresponding path program 1 times [2020-10-16 11:18:29,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359258517] [2020-10-16 11:18:29,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359258517] [2020-10-16 11:18:29,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:18:29,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247041665] [2020-10-16 11:18:29,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:29,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:29,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:29,378 INFO L87 Difference]: Start difference. First operand 108 states and 253 transitions. Second operand 3 states. [2020-10-16 11:18:29,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,389 INFO L93 Difference]: Finished difference Result 106 states and 246 transitions. [2020-10-16 11:18:29,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:29,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 11:18:29,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,391 INFO L225 Difference]: With dead ends: 106 [2020-10-16 11:18:29,392 INFO L226 Difference]: Without dead ends: 106 [2020-10-16 11:18:29,392 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 [2020-10-16 11:18:29,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-16 11:18:29,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-10-16 11:18:29,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-16 11:18:29,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 246 transitions. [2020-10-16 11:18:29,403 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 246 transitions. Word has length 11 [2020-10-16 11:18:29,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,403 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 246 transitions. [2020-10-16 11:18:29,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:29,403 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 246 transitions. [2020-10-16 11:18:29,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:18:29,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:18:29,405 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,406 INFO L82 PathProgramCache]: Analyzing trace with hash -197699224, now seen corresponding path program 1 times [2020-10-16 11:18:29,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070622191] [2020-10-16 11:18:29,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070622191] [2020-10-16 11:18:29,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:29,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835654607] [2020-10-16 11:18:29,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:29,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:29,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:29,526 INFO L87 Difference]: Start difference. First operand 106 states and 246 transitions. Second operand 4 states. [2020-10-16 11:18:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,554 INFO L93 Difference]: Finished difference Result 138 states and 314 transitions. [2020-10-16 11:18:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:18:29,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:18:29,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,555 INFO L225 Difference]: With dead ends: 138 [2020-10-16 11:18:29,556 INFO L226 Difference]: Without dead ends: 60 [2020-10-16 11:18:29,556 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 [2020-10-16 11:18:29,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-16 11:18:29,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-16 11:18:29,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-16 11:18:29,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-10-16 11:18:29,562 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 12 [2020-10-16 11:18:29,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,563 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-10-16 11:18:29,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:29,563 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-10-16 11:18:29,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:18:29,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:18:29,564 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 2 times [2020-10-16 11:18:29,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733680236] [2020-10-16 11:18:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733680236] [2020-10-16 11:18:29,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:29,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989808091] [2020-10-16 11:18:29,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:29,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:29,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:29,646 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-10-16 11:18:29,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,675 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-10-16 11:18:29,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:18:29,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:18:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,677 INFO L225 Difference]: With dead ends: 73 [2020-10-16 11:18:29,677 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 11:18:29,677 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 [2020-10-16 11:18:29,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 11:18:29,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-16 11:18:29,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-16 11:18:29,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-10-16 11:18:29,682 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-10-16 11:18:29,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,683 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-10-16 11:18:29,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:29,683 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-10-16 11:18:29,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:18:29,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:18:29,684 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-10-16 11:18:29,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921482050] [2020-10-16 11:18:29,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921482050] [2020-10-16 11:18:29,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:18:29,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286039321] [2020-10-16 11:18:29,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:18:29,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:18:29,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:29,763 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-10-16 11:18:29,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,808 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-10-16 11:18:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:18:29,809 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 11:18:29,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,810 INFO L225 Difference]: With dead ends: 53 [2020-10-16 11:18:29,810 INFO L226 Difference]: Without dead ends: 38 [2020-10-16 11:18:29,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:18:29,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-16 11:18:29,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-16 11:18:29,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-16 11:18:29,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-10-16 11:18:29,814 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-10-16 11:18:29,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,815 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-10-16 11:18:29,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:18:29,815 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-10-16 11:18:29,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:18:29,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:18:29,816 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-10-16 11:18:29,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752477967] [2020-10-16 11:18:29,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752477967] [2020-10-16 11:18:29,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:18:29,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038729689] [2020-10-16 11:18:29,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:18:29,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:18:29,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:18:29,916 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-10-16 11:18:29,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,985 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-10-16 11:18:29,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:18:29,986 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-16 11:18:29,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,986 INFO L225 Difference]: With dead ends: 35 [2020-10-16 11:18:29,986 INFO L226 Difference]: Without dead ends: 29 [2020-10-16 11:18:29,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:18:29,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-16 11:18:29,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-16 11:18:29,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-16 11:18:29,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-16 11:18:29,993 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-10-16 11:18:29,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,993 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-16 11:18:29,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:18:29,994 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-16 11:18:29,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 11:18:29,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:18:29,995 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-10-16 11:18:29,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859982174] [2020-10-16 11:18:29,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:30,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:30,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859982174] [2020-10-16 11:18:30,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:30,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:30,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129577481] [2020-10-16 11:18:30,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:30,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:30,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:30,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:30,057 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-10-16 11:18:30,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:30,064 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-10-16 11:18:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:30,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-16 11:18:30,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:30,066 INFO L225 Difference]: With dead ends: 28 [2020-10-16 11:18:30,066 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:18:30,067 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 [2020-10-16 11:18:30,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:18:30,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:18:30,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:18:30,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:18:30,067 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-16 11:18:30,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:30,068 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:18:30,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:30,068 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:18:30,068 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:18:30,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 11:18:30,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:18:30 BasicIcfg [2020-10-16 11:18:30,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:18:30,084 INFO L168 Benchmark]: Toolchain (without parser) took 4334.28 ms. Allocated memory was 140.0 MB in the beginning and 246.9 MB in the end (delta: 107.0 MB). Free memory was 102.0 MB in the beginning and 190.4 MB in the end (delta: -88.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:30,086 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:18:30,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.49 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.8 MB in the beginning and 161.5 MB in the end (delta: -59.8 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:30,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.88 ms. Allocated memory is still 203.9 MB. Free memory was 161.5 MB in the beginning and 159.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:30,091 INFO L168 Benchmark]: Boogie Preprocessor took 28.30 ms. Allocated memory is still 203.9 MB. Free memory was 159.5 MB in the beginning and 158.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:30,092 INFO L168 Benchmark]: RCFGBuilder took 448.89 ms. Allocated memory is still 203.9 MB. Free memory was 158.2 MB in the beginning and 136.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:30,094 INFO L168 Benchmark]: TraceAbstraction took 3089.19 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 135.4 MB in the beginning and 190.4 MB in the end (delta: -55.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:18:30,102 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 712.49 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.8 MB in the beginning and 161.5 MB in the end (delta: -59.8 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.88 ms. Allocated memory is still 203.9 MB. Free memory was 161.5 MB in the beginning and 159.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.30 ms. Allocated memory is still 203.9 MB. Free memory was 159.5 MB in the beginning and 158.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.89 ms. Allocated memory is still 203.9 MB. Free memory was 158.2 MB in the beginning and 136.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3089.19 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 135.4 MB in the beginning and 190.4 MB in the end (delta: -55.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 76 PlacesBefore, 30 PlacesAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 2093 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 125 SDtfs, 102 SDslu, 132 SDs, 0 SdLazy, 102 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 3039 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...