/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:08:27,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:08:27,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:08:27,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 10:08:27,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 10:08:27,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 10:08:27,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 10:08:27,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 10:08:27,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 10:08:27,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 10:08:27,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 10:08:27,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 10:08:27,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:08:27,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:08:27,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:08:27,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:08:27,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:08:27,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:08:27,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:08:27,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:08:27,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:08:27,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:08:27,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:08:27,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:08:27,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:08:27,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:08:27,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:08:27,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:08:27,561 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 10:08:27,588 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:08:27,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:08:27,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:08:27,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:08:27,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:08:27,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:08:27,591 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:08:27,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:08:27,591 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:08:27,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:08:27,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:08:27,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:08:27,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:08:27,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:08:27,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:08:27,592 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:08:27,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:08:27,592 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:08:27,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:08:27,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:08:27,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:08:27,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:08:27,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:08:27,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:08:27,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:08:27,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:08:27,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:08:27,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:08:27,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:08:27,593 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:08:27,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:08:27,594 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:08:27,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:08:27,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:08:27,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:08:27,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:08:27,851 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:08:27,852 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:08:27,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2021-06-05 10:08:27,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb825edf8/68075404060f40718adcfd31d41dae88/FLAG6e2fbaddd [2021-06-05 10:08:28,306 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:08:28,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2021-06-05 10:08:28,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb825edf8/68075404060f40718adcfd31d41dae88/FLAG6e2fbaddd [2021-06-05 10:08:28,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb825edf8/68075404060f40718adcfd31d41dae88 [2021-06-05 10:08:28,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:08:28,329 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:08:28,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:08:28,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:08:28,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:08:28,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:08:28" (1/1) ... [2021-06-05 10:08:28,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54dbe7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28, skipping insertion in model container [2021-06-05 10:08:28,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:08:28" (1/1) ... [2021-06-05 10:08:28,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:08:28,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:08:28,512 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i[950,963] [2021-06-05 10:08:28,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:08:28,636 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:08:28,643 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i[950,963] [2021-06-05 10:08:28,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:08:28,699 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:08:28,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28 WrapperNode [2021-06-05 10:08:28,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:08:28,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:08:28,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:08:28,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:08:28,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28" (1/1) ... [2021-06-05 10:08:28,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28" (1/1) ... [2021-06-05 10:08:28,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:08:28,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:08:28,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:08:28,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:08:28,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28" (1/1) ... [2021-06-05 10:08:28,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28" (1/1) ... [2021-06-05 10:08:28,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28" (1/1) ... [2021-06-05 10:08:28,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28" (1/1) ... [2021-06-05 10:08:28,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28" (1/1) ... [2021-06-05 10:08:28,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28" (1/1) ... [2021-06-05 10:08:28,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28" (1/1) ... [2021-06-05 10:08:28,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:08:28,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:08:28,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:08:28,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:08:28,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28" (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 [2021-06-05 10:08:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:08:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:08:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:08:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:08:28,824 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:08:28,824 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:08:28,824 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:08:28,824 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:08:28,824 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:08:28,824 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:08:28,824 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-05 10:08:28,825 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-05 10:08:28,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:08:28,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:08:28,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:08:28,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:08:28,826 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:08:29,105 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:08:29,106 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:08:29,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:08:29 BoogieIcfgContainer [2021-06-05 10:08:29,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:08:29,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:08:29,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:08:29,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:08:29,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:08:28" (1/3) ... [2021-06-05 10:08:29,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56160cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:08:29, skipping insertion in model container [2021-06-05 10:08:29,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:28" (2/3) ... [2021-06-05 10:08:29,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56160cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:08:29, skipping insertion in model container [2021-06-05 10:08:29,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:08:29" (3/3) ... [2021-06-05 10:08:29,112 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2021-06-05 10:08:29,116 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:08:29,116 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:08:29,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:08:29,117 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:08:29,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,141 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,141 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,141 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,141 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,142 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,142 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,142 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,142 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,143 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,143 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,145 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,145 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,145 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,146 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,146 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,146 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,146 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,146 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,146 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,146 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,146 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,147 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,147 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,148 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,148 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,148 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,149 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,152 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,152 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,154 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,154 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,156 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,156 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:29,157 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:08:29,172 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 10:08:29,184 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:08:29,184 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:08:29,184 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:08:29,184 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:08:29,185 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:08:29,185 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:08:29,185 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:08:29,185 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:08:29,192 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 98 transitions, 216 flow [2021-06-05 10:08:33,923 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51815 states, 51813 states have (on average 4.368652654739158) internal successors, (226353), 51814 states have internal predecessors, (226353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:34,036 INFO L276 IsEmpty]: Start isEmpty. Operand has 51815 states, 51813 states have (on average 4.368652654739158) internal successors, (226353), 51814 states have internal predecessors, (226353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:34,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:08:34,090 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:34,090 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:34,091 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:34,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:34,096 INFO L82 PathProgramCache]: Analyzing trace with hash -352002722, now seen corresponding path program 1 times [2021-06-05 10:08:34,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:34,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772263845] [2021-06-05 10:08:34,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:34,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:34,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772263845] [2021-06-05 10:08:34,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772263845] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:34,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:34,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:34,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080865972] [2021-06-05 10:08:34,639 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:34,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:34,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:34,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:34,721 INFO L87 Difference]: Start difference. First operand has 51815 states, 51813 states have (on average 4.368652654739158) internal successors, (226353), 51814 states have internal predecessors, (226353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:36,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:36,010 INFO L93 Difference]: Finished difference Result 101003 states and 428395 transitions. [2021-06-05 10:08:36,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:08:36,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 10:08:36,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:36,262 INFO L225 Difference]: With dead ends: 101003 [2021-06-05 10:08:36,262 INFO L226 Difference]: Without dead ends: 31943 [2021-06-05 10:08:36,263 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 238.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:08:36,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31943 states. [2021-06-05 10:08:37,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31943 to 27623. [2021-06-05 10:08:37,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27623 states, 27622 states have (on average 4.142893345883716) internal successors, (114435), 27622 states have internal predecessors, (114435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27623 states to 27623 states and 114435 transitions. [2021-06-05 10:08:37,656 INFO L78 Accepts]: Start accepts. Automaton has 27623 states and 114435 transitions. Word has length 56 [2021-06-05 10:08:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:37,657 INFO L482 AbstractCegarLoop]: Abstraction has 27623 states and 114435 transitions. [2021-06-05 10:08:37,657 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 27623 states and 114435 transitions. [2021-06-05 10:08:37,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:08:37,698 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:37,698 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:37,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:08:37,698 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:37,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:37,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1559850451, now seen corresponding path program 1 times [2021-06-05 10:08:37,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:37,699 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075527473] [2021-06-05 10:08:37,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:37,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:37,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:37,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075527473] [2021-06-05 10:08:37,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075527473] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:37,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:37,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:37,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892795259] [2021-06-05 10:08:37,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:37,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:37,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:37,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:37,828 INFO L87 Difference]: Start difference. First operand 27623 states and 114435 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:38,176 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-06-05 10:08:38,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:38,393 INFO L93 Difference]: Finished difference Result 38687 states and 158623 transitions. [2021-06-05 10:08:38,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:08:38,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-05 10:08:38,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:38,618 INFO L225 Difference]: With dead ends: 38687 [2021-06-05 10:08:38,618 INFO L226 Difference]: Without dead ends: 30959 [2021-06-05 10:08:38,619 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 328.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:08:38,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30959 states. [2021-06-05 10:08:39,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30959 to 26543. [2021-06-05 10:08:39,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26543 states, 26542 states have (on average 4.122937231557532) internal successors, (109431), 26542 states have internal predecessors, (109431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:39,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26543 states to 26543 states and 109431 transitions. [2021-06-05 10:08:39,519 INFO L78 Accepts]: Start accepts. Automaton has 26543 states and 109431 transitions. Word has length 58 [2021-06-05 10:08:39,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:39,519 INFO L482 AbstractCegarLoop]: Abstraction has 26543 states and 109431 transitions. [2021-06-05 10:08:39,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:39,519 INFO L276 IsEmpty]: Start isEmpty. Operand 26543 states and 109431 transitions. [2021-06-05 10:08:39,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 10:08:39,556 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:39,556 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:39,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:08:39,556 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:39,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:39,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1159192084, now seen corresponding path program 1 times [2021-06-05 10:08:39,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:39,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259922820] [2021-06-05 10:08:39,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:39,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:39,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:39,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259922820] [2021-06-05 10:08:39,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259922820] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:39,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:39,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:39,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256238046] [2021-06-05 10:08:39,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:39,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:39,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:39,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:39,685 INFO L87 Difference]: Start difference. First operand 26543 states and 109431 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:40,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:40,230 INFO L93 Difference]: Finished difference Result 34415 states and 140543 transitions. [2021-06-05 10:08:40,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:08:40,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-05 10:08:40,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:40,363 INFO L225 Difference]: With dead ends: 34415 [2021-06-05 10:08:40,363 INFO L226 Difference]: Without dead ends: 29519 [2021-06-05 10:08:40,363 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 147.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:08:40,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29519 states. [2021-06-05 10:08:41,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29519 to 25103. [2021-06-05 10:08:41,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25103 states, 25102 states have (on average 4.10799936260059) internal successors, (103119), 25102 states have internal predecessors, (103119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:41,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25103 states to 25103 states and 103119 transitions. [2021-06-05 10:08:41,200 INFO L78 Accepts]: Start accepts. Automaton has 25103 states and 103119 transitions. Word has length 60 [2021-06-05 10:08:41,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:41,200 INFO L482 AbstractCegarLoop]: Abstraction has 25103 states and 103119 transitions. [2021-06-05 10:08:41,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:41,201 INFO L276 IsEmpty]: Start isEmpty. Operand 25103 states and 103119 transitions. [2021-06-05 10:08:41,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:08:41,237 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:41,237 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:41,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:08:41,237 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:41,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:41,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1105894485, now seen corresponding path program 1 times [2021-06-05 10:08:41,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:41,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534825852] [2021-06-05 10:08:41,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:41,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:41,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534825852] [2021-06-05 10:08:41,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534825852] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:41,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:41,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:41,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108159952] [2021-06-05 10:08:41,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:41,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:41,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:41,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:41,309 INFO L87 Difference]: Start difference. First operand 25103 states and 103119 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:41,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:41,799 INFO L93 Difference]: Finished difference Result 36719 states and 149687 transitions. [2021-06-05 10:08:41,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:08:41,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 10:08:41,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:41,918 INFO L225 Difference]: With dead ends: 36719 [2021-06-05 10:08:41,918 INFO L226 Difference]: Without dead ends: 25775 [2021-06-05 10:08:41,919 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 92.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 10:08:42,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25775 states. [2021-06-05 10:08:42,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25775 to 20135. [2021-06-05 10:08:42,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20135 states, 20134 states have (on average 4.0717691467169965) internal successors, (81981), 20134 states have internal predecessors, (81981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:42,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20135 states to 20135 states and 81981 transitions. [2021-06-05 10:08:42,673 INFO L78 Accepts]: Start accepts. Automaton has 20135 states and 81981 transitions. Word has length 61 [2021-06-05 10:08:42,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:42,673 INFO L482 AbstractCegarLoop]: Abstraction has 20135 states and 81981 transitions. [2021-06-05 10:08:42,674 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:42,674 INFO L276 IsEmpty]: Start isEmpty. Operand 20135 states and 81981 transitions. [2021-06-05 10:08:42,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 10:08:42,704 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:42,704 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:42,705 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:08:42,705 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:42,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:42,705 INFO L82 PathProgramCache]: Analyzing trace with hash -204466803, now seen corresponding path program 1 times [2021-06-05 10:08:42,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:42,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259432145] [2021-06-05 10:08:42,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:42,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:42,784 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:42,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259432145] [2021-06-05 10:08:42,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259432145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:42,784 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:42,784 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:08:42,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907666447] [2021-06-05 10:08:42,785 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:08:42,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:42,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:08:42,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:08:42,786 INFO L87 Difference]: Start difference. First operand 20135 states and 81981 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:43,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:43,006 INFO L93 Difference]: Finished difference Result 34895 states and 141159 transitions. [2021-06-05 10:08:43,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:08:43,006 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-05 10:08:43,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:43,058 INFO L225 Difference]: With dead ends: 34895 [2021-06-05 10:08:43,058 INFO L226 Difference]: Without dead ends: 20700 [2021-06-05 10:08:43,058 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 71.3ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 10:08:43,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20700 states. [2021-06-05 10:08:43,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20700 to 17820. [2021-06-05 10:08:43,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17820 states, 17819 states have (on average 4.047421291879455) internal successors, (72121), 17819 states have internal predecessors, (72121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:43,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17820 states to 17820 states and 72121 transitions. [2021-06-05 10:08:43,626 INFO L78 Accepts]: Start accepts. Automaton has 17820 states and 72121 transitions. Word has length 62 [2021-06-05 10:08:43,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:43,626 INFO L482 AbstractCegarLoop]: Abstraction has 17820 states and 72121 transitions. [2021-06-05 10:08:43,626 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:43,626 INFO L276 IsEmpty]: Start isEmpty. Operand 17820 states and 72121 transitions. [2021-06-05 10:08:43,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 10:08:43,651 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:43,651 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:43,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:08:43,652 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:43,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:43,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1605957499, now seen corresponding path program 2 times [2021-06-05 10:08:43,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:43,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618221076] [2021-06-05 10:08:43,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:43,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:43,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:43,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618221076] [2021-06-05 10:08:43,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618221076] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:43,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:43,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:43,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990825072] [2021-06-05 10:08:43,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:43,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:43,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:43,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:43,726 INFO L87 Difference]: Start difference. First operand 17820 states and 72121 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:43,935 INFO L93 Difference]: Finished difference Result 26260 states and 105035 transitions. [2021-06-05 10:08:43,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:08:43,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-05 10:08:43,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:43,967 INFO L225 Difference]: With dead ends: 26260 [2021-06-05 10:08:43,973 INFO L226 Difference]: Without dead ends: 13000 [2021-06-05 10:08:43,974 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 90.3ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:08:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13000 states. [2021-06-05 10:08:44,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13000 to 13000. [2021-06-05 10:08:44,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13000 states, 12999 states have (on average 3.95484268020617) internal successors, (51409), 12999 states have internal predecessors, (51409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13000 states to 13000 states and 51409 transitions. [2021-06-05 10:08:44,463 INFO L78 Accepts]: Start accepts. Automaton has 13000 states and 51409 transitions. Word has length 62 [2021-06-05 10:08:44,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:44,464 INFO L482 AbstractCegarLoop]: Abstraction has 13000 states and 51409 transitions. [2021-06-05 10:08:44,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:44,464 INFO L276 IsEmpty]: Start isEmpty. Operand 13000 states and 51409 transitions. [2021-06-05 10:08:44,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-05 10:08:44,481 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:44,482 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:44,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:08:44,482 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:44,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:44,482 INFO L82 PathProgramCache]: Analyzing trace with hash 262666992, now seen corresponding path program 1 times [2021-06-05 10:08:44,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:44,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837604517] [2021-06-05 10:08:44,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:44,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:44,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837604517] [2021-06-05 10:08:44,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837604517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:44,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:44,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:08:44,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402232157] [2021-06-05 10:08:44,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:08:44,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:44,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:08:44,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:08:44,566 INFO L87 Difference]: Start difference. First operand 13000 states and 51409 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:44,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:44,715 INFO L93 Difference]: Finished difference Result 17372 states and 68227 transitions. [2021-06-05 10:08:44,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:08:44,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-06-05 10:08:44,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:44,746 INFO L225 Difference]: With dead ends: 17372 [2021-06-05 10:08:44,746 INFO L226 Difference]: Without dead ends: 12636 [2021-06-05 10:08:44,747 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 64.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:08:44,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12636 states. [2021-06-05 10:08:44,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12636 to 12636. [2021-06-05 10:08:44,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12636 states, 12635 states have (on average 3.9381875741986545) internal successors, (49759), 12635 states have internal predecessors, (49759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:44,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12636 states to 12636 states and 49759 transitions. [2021-06-05 10:08:44,976 INFO L78 Accepts]: Start accepts. Automaton has 12636 states and 49759 transitions. Word has length 64 [2021-06-05 10:08:44,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:44,976 INFO L482 AbstractCegarLoop]: Abstraction has 12636 states and 49759 transitions. [2021-06-05 10:08:44,977 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:44,977 INFO L276 IsEmpty]: Start isEmpty. Operand 12636 states and 49759 transitions. [2021-06-05 10:08:44,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 10:08:44,994 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:44,994 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:44,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:08:44,994 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:44,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:44,994 INFO L82 PathProgramCache]: Analyzing trace with hash -680334294, now seen corresponding path program 1 times [2021-06-05 10:08:44,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:44,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570723391] [2021-06-05 10:08:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:45,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:45,101 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:45,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570723391] [2021-06-05 10:08:45,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570723391] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:45,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:45,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:45,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985890103] [2021-06-05 10:08:45,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:45,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:45,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:45,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:45,105 INFO L87 Difference]: Start difference. First operand 12636 states and 49759 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:45,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:45,414 INFO L93 Difference]: Finished difference Result 15534 states and 60340 transitions. [2021-06-05 10:08:45,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:08:45,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-05 10:08:45,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:45,440 INFO L225 Difference]: With dead ends: 15534 [2021-06-05 10:08:45,441 INFO L226 Difference]: Without dead ends: 11070 [2021-06-05 10:08:45,441 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 82.1ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:08:45,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2021-06-05 10:08:45,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 11070. [2021-06-05 10:08:45,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11070 states, 11069 states have (on average 3.8690035233535096) internal successors, (42826), 11069 states have internal predecessors, (42826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:45,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11070 states to 11070 states and 42826 transitions. [2021-06-05 10:08:45,681 INFO L78 Accepts]: Start accepts. Automaton has 11070 states and 42826 transitions. Word has length 65 [2021-06-05 10:08:45,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:45,681 INFO L482 AbstractCegarLoop]: Abstraction has 11070 states and 42826 transitions. [2021-06-05 10:08:45,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:45,681 INFO L276 IsEmpty]: Start isEmpty. Operand 11070 states and 42826 transitions. [2021-06-05 10:08:45,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 10:08:45,698 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:45,698 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:45,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:08:45,698 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:45,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:45,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1718539969, now seen corresponding path program 1 times [2021-06-05 10:08:45,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:45,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299571058] [2021-06-05 10:08:45,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:45,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:45,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:45,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299571058] [2021-06-05 10:08:45,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299571058] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:45,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:45,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:08:45,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624265123] [2021-06-05 10:08:45,761 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:08:45,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:45,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:08:45,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:08:45,761 INFO L87 Difference]: Start difference. First operand 11070 states and 42826 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:45,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:45,927 INFO L93 Difference]: Finished difference Result 11547 states and 43804 transitions. [2021-06-05 10:08:45,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:08:45,928 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-05 10:08:45,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:45,946 INFO L225 Difference]: With dead ends: 11547 [2021-06-05 10:08:45,946 INFO L226 Difference]: Without dead ends: 8163 [2021-06-05 10:08:45,947 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 87.4ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:08:45,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8163 states. [2021-06-05 10:08:46,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8163 to 8163. [2021-06-05 10:08:46,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8163 states, 8162 states have (on average 3.747733398676795) internal successors, (30589), 8162 states have internal predecessors, (30589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8163 states to 8163 states and 30589 transitions. [2021-06-05 10:08:46,111 INFO L78 Accepts]: Start accepts. Automaton has 8163 states and 30589 transitions. Word has length 66 [2021-06-05 10:08:46,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:46,111 INFO L482 AbstractCegarLoop]: Abstraction has 8163 states and 30589 transitions. [2021-06-05 10:08:46,111 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,111 INFO L276 IsEmpty]: Start isEmpty. Operand 8163 states and 30589 transitions. [2021-06-05 10:08:46,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-05 10:08:46,123 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:46,123 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:46,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 10:08:46,124 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:46,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:46,124 INFO L82 PathProgramCache]: Analyzing trace with hash 492191662, now seen corresponding path program 1 times [2021-06-05 10:08:46,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:46,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641496455] [2021-06-05 10:08:46,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:46,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:46,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641496455] [2021-06-05 10:08:46,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641496455] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:46,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:46,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:46,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624232225] [2021-06-05 10:08:46,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:46,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:46,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:46,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:46,181 INFO L87 Difference]: Start difference. First operand 8163 states and 30589 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:46,285 INFO L93 Difference]: Finished difference Result 11715 states and 44012 transitions. [2021-06-05 10:08:46,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:08:46,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-06-05 10:08:46,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:46,380 INFO L225 Difference]: With dead ends: 11715 [2021-06-05 10:08:46,380 INFO L226 Difference]: Without dead ends: 7501 [2021-06-05 10:08:46,381 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 59.0ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:08:46,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2021-06-05 10:08:46,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 6853. [2021-06-05 10:08:46,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6853 states, 6852 states have (on average 3.7286923525977818) internal successors, (25549), 6852 states have internal predecessors, (25549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6853 states to 6853 states and 25549 transitions. [2021-06-05 10:08:46,501 INFO L78 Accepts]: Start accepts. Automaton has 6853 states and 25549 transitions. Word has length 68 [2021-06-05 10:08:46,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:46,501 INFO L482 AbstractCegarLoop]: Abstraction has 6853 states and 25549 transitions. [2021-06-05 10:08:46,501 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,501 INFO L276 IsEmpty]: Start isEmpty. Operand 6853 states and 25549 transitions. [2021-06-05 10:08:46,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-05 10:08:46,510 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:46,510 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:46,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 10:08:46,510 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:46,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:46,510 INFO L82 PathProgramCache]: Analyzing trace with hash 132401632, now seen corresponding path program 2 times [2021-06-05 10:08:46,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:46,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569201773] [2021-06-05 10:08:46,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:46,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:46,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:46,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569201773] [2021-06-05 10:08:46,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569201773] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:46,581 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:46,581 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 10:08:46,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159708398] [2021-06-05 10:08:46,581 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:08:46,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:46,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:08:46,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:08:46,582 INFO L87 Difference]: Start difference. First operand 6853 states and 25549 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:46,737 INFO L93 Difference]: Finished difference Result 5935 states and 21715 transitions. [2021-06-05 10:08:46,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 10:08:46,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-06-05 10:08:46,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:46,744 INFO L225 Difference]: With dead ends: 5935 [2021-06-05 10:08:46,744 INFO L226 Difference]: Without dead ends: 3187 [2021-06-05 10:08:46,744 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 115.6ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-06-05 10:08:46,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2021-06-05 10:08:46,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 3187. [2021-06-05 10:08:46,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3187 states, 3186 states have (on average 3.5505335844318897) internal successors, (11312), 3186 states have internal predecessors, (11312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3187 states to 3187 states and 11312 transitions. [2021-06-05 10:08:46,791 INFO L78 Accepts]: Start accepts. Automaton has 3187 states and 11312 transitions. Word has length 68 [2021-06-05 10:08:46,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:46,791 INFO L482 AbstractCegarLoop]: Abstraction has 3187 states and 11312 transitions. [2021-06-05 10:08:46,791 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3187 states and 11312 transitions. [2021-06-05 10:08:46,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 10:08:46,795 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:46,795 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:46,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 10:08:46,795 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:46,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:46,796 INFO L82 PathProgramCache]: Analyzing trace with hash -599850687, now seen corresponding path program 1 times [2021-06-05 10:08:46,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:46,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371803891] [2021-06-05 10:08:46,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:46,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:46,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371803891] [2021-06-05 10:08:46,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371803891] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:46,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:46,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:46,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833373841] [2021-06-05 10:08:46,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:46,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:46,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:46,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:46,881 INFO L87 Difference]: Start difference. First operand 3187 states and 11312 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:46,932 INFO L93 Difference]: Finished difference Result 3025 states and 10718 transitions. [2021-06-05 10:08:46,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 10:08:46,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-06-05 10:08:46,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:46,932 INFO L225 Difference]: With dead ends: 3025 [2021-06-05 10:08:46,932 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:08:46,933 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:08:46,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:08:46,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:08:46,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:08:46,934 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-06-05 10:08:46,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:46,934 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:08:46,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,934 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:08:46,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:08:46,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 10:08:46,935 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:08:46,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:08:46 BasicIcfg [2021-06-05 10:08:46,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:08:46,938 INFO L168 Benchmark]: Toolchain (without parser) took 18609.03 ms. Allocated memory was 390.1 MB in the beginning and 10.9 GB in the end (delta: 10.5 GB). Free memory was 352.2 MB in the beginning and 9.1 GB in the end (delta: -8.8 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2021-06-05 10:08:46,938 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 390.1 MB. Free memory is still 370.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:08:46,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.14 ms. Allocated memory is still 390.1 MB. Free memory was 352.0 MB in the beginning and 352.2 MB in the end (delta: -187.8 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-06-05 10:08:46,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.24 ms. Allocated memory is still 390.1 MB. Free memory was 352.2 MB in the beginning and 350.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:08:46,942 INFO L168 Benchmark]: Boogie Preprocessor took 14.02 ms. Allocated memory is still 390.1 MB. Free memory was 350.1 MB in the beginning and 348.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:08:46,944 INFO L168 Benchmark]: RCFGBuilder took 365.70 ms. Allocated memory is still 390.1 MB. Free memory was 348.0 MB in the beginning and 320.7 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 10:08:46,945 INFO L168 Benchmark]: TraceAbstraction took 17829.00 ms. Allocated memory was 390.1 MB in the beginning and 10.9 GB in the end (delta: 10.5 GB). Free memory was 319.7 MB in the beginning and 9.1 GB in the end (delta: -8.8 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2021-06-05 10:08:46,946 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 390.1 MB. Free memory is still 370.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 370.14 ms. Allocated memory is still 390.1 MB. Free memory was 352.0 MB in the beginning and 352.2 MB in the end (delta: -187.8 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.24 ms. Allocated memory is still 390.1 MB. Free memory was 352.2 MB in the beginning and 350.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.02 ms. Allocated memory is still 390.1 MB. Free memory was 350.1 MB in the beginning and 348.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 365.70 ms. Allocated memory is still 390.1 MB. Free memory was 348.0 MB in the beginning and 320.7 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 17829.00 ms. Allocated memory was 390.1 MB in the beginning and 10.9 GB in the end (delta: 10.5 GB). Free memory was 319.7 MB in the beginning and 9.1 GB in the end (delta: -8.8 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 127 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17752.0ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 410.8ms, AutomataDifference: 5345.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4738.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1558 SDtfs, 2812 SDslu, 5634 SDs, 0 SdLazy, 600 SolverSat, 137 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 459.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1430.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51815occurred in iteration=0, InterpolantAutomatonStates: 124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5732.5ms AutomataMinimizationTime, 12 MinimizatonAttempts, 22320 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.3ms SsaConstructionTime, 195.1ms SatisfiabilityAnalysisTime, 1151.6ms InterpolantComputationTime, 760 NumberOfCodeBlocks, 760 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 748 ConstructedInterpolants, 0 QuantifiedInterpolants, 3268 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...