/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:34:11,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:34:11,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:34:11,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:34:11,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:34:11,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:34:11,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:34:11,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-03-10 17:34:11,419 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:34:11,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:34:11,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:34:11,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:34:11,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:34:11,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:34:11,423 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:34:11,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:34:11,423 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:34:11,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:34:11,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:34:11,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:34:11,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:34:11,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:34:11,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:34:11,425 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:34:11,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:34:11,425 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:34:11,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:34:11,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:34:11,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:34:11,426 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:34:11,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:34:11,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:34:11,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:34:11,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:34:11,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:34:11,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:34:11,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:34:11,427 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:34:11,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:34:11,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:34:11,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:34:11,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:34:11,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:34:11,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:34:11,747 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:34:11,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-03-10 17:34:11,803 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51bcfc70d/3e5a9c8991ed4f6a8feddf3db18445e3/FLAGf14300708 [2021-03-10 17:34:12,330 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:34:12,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-03-10 17:34:12,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51bcfc70d/3e5a9c8991ed4f6a8feddf3db18445e3/FLAGf14300708 [2021-03-10 17:34:12,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51bcfc70d/3e5a9c8991ed4f6a8feddf3db18445e3 [2021-03-10 17:34:12,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:34:12,832 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:34:12,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:34:12,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:34:12,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:34:12,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:34:12" (1/1) ... [2021-03-10 17:34:12,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c3b85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:12, skipping insertion in model container [2021-03-10 17:34:12,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:34:12" (1/1) ... [2021-03-10 17:34:12,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:34:12,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:34:12,979 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i[950,963] [2021-03-10 17:34:13,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:34:13,127 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:34:13,136 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i[950,963] [2021-03-10 17:34:13,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:34:13,217 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:34:13,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:13 WrapperNode [2021-03-10 17:34:13,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:34:13,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:34:13,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:34:13,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:34:13,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:13" (1/1) ... [2021-03-10 17:34:13,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:13" (1/1) ... [2021-03-10 17:34:13,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:34:13,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:34:13,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:34:13,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:34:13,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:13" (1/1) ... [2021-03-10 17:34:13,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:13" (1/1) ... [2021-03-10 17:34:13,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:13" (1/1) ... [2021-03-10 17:34:13,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:13" (1/1) ... [2021-03-10 17:34:13,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:13" (1/1) ... [2021-03-10 17:34:13,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:13" (1/1) ... [2021-03-10 17:34:13,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:13" (1/1) ... [2021-03-10 17:34:13,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:34:13,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:34:13,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:34:13,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:34:13,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:13" (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 [2021-03-10 17:34:13,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:34:13,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:34:13,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:34:13,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:34:13,352 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-10 17:34:13,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-10 17:34:13,353 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-10 17:34:13,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-10 17:34:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-10 17:34:13,354 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-10 17:34:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-10 17:34:13,354 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-10 17:34:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:34:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:34:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:34:13,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:34:13,356 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:34:13,718 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:34:13,718 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-10 17:34:13,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:34:13 BoogieIcfgContainer [2021-03-10 17:34:13,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:34:13,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:34:13,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:34:13,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:34:13,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:34:12" (1/3) ... [2021-03-10 17:34:13,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212b2479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:34:13, skipping insertion in model container [2021-03-10 17:34:13,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:13" (2/3) ... [2021-03-10 17:34:13,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212b2479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:34:13, skipping insertion in model container [2021-03-10 17:34:13,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:34:13" (3/3) ... [2021-03-10 17:34:13,726 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2021-03-10 17:34:13,731 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:34:13,731 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:34:13,735 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 17:34:13,735 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:34:13,765 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,765 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,766 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,766 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,766 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,766 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,766 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,766 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,767 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,768 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,768 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,768 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,769 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,769 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,772 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,774 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,774 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,774 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,774 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,776 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,776 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,777 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,777 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,777 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,777 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,777 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,777 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,777 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,778 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,778 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,778 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,778 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,778 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,781 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,784 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,784 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,784 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,785 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,787 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,787 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,792 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,793 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:13,794 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 17:34:13,825 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-10 17:34:13,852 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:34:13,852 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:34:13,852 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:34:13,852 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:34:13,852 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:34:13,852 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:34:13,852 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:34:13,852 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:34:13,864 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 98 places, 87 transitions, 194 flow [2021-03-10 17:34:18,640 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 49021 states, 49019 states have (on average 4.388441216671087) internal successors, (215117), 49020 states have internal predecessors, (215117), 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) [2021-03-10 17:34:18,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 49021 states, 49019 states have (on average 4.388441216671087) internal successors, (215117), 49020 states have internal predecessors, (215117), 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) [2021-03-10 17:34:18,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-03-10 17:34:18,892 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:18,893 INFO L519 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] [2021-03-10 17:34:18,894 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:18,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:18,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1468949887, now seen corresponding path program 1 times [2021-03-10 17:34:18,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:18,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454775852] [2021-03-10 17:34:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:19,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:19,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454775852] [2021-03-10 17:34:19,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:19,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:19,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619108085] [2021-03-10 17:34:19,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:19,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:19,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:19,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:19,464 INFO L87 Difference]: Start difference. First operand has 49021 states, 49019 states have (on average 4.388441216671087) internal successors, (215117), 49020 states have internal predecessors, (215117), 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 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-03-10 17:34:20,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:20,290 INFO L93 Difference]: Finished difference Result 66409 states and 285209 transitions. [2021-03-10 17:34:20,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:34:20,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 45 [2021-03-10 17:34:20,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:20,446 INFO L225 Difference]: With dead ends: 66409 [2021-03-10 17:34:20,446 INFO L226 Difference]: Without dead ends: 21301 [2021-03-10 17:34:20,448 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 111.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:34:20,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21301 states. [2021-03-10 17:34:21,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21301 to 21301. [2021-03-10 17:34:21,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21301 states, 21300 states have (on average 4.212065727699531) internal successors, (89717), 21300 states have internal predecessors, (89717), 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) [2021-03-10 17:34:22,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21301 states to 21301 states and 89717 transitions. [2021-03-10 17:34:22,076 INFO L78 Accepts]: Start accepts. Automaton has 21301 states and 89717 transitions. Word has length 45 [2021-03-10 17:34:22,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:22,078 INFO L480 AbstractCegarLoop]: Abstraction has 21301 states and 89717 transitions. [2021-03-10 17:34:22,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-03-10 17:34:22,079 INFO L276 IsEmpty]: Start isEmpty. Operand 21301 states and 89717 transitions. [2021-03-10 17:34:22,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-03-10 17:34:22,109 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:22,109 INFO L519 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] [2021-03-10 17:34:22,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:34:22,110 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:22,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:22,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1132168828, now seen corresponding path program 1 times [2021-03-10 17:34:22,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:22,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077829682] [2021-03-10 17:34:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:22,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:22,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077829682] [2021-03-10 17:34:22,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:22,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:22,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509190301] [2021-03-10 17:34:22,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:22,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:22,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:22,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:22,283 INFO L87 Difference]: Start difference. First operand 21301 states and 89717 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-03-10 17:34:22,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:22,896 INFO L93 Difference]: Finished difference Result 28665 states and 120337 transitions. [2021-03-10 17:34:22,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:34:22,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2021-03-10 17:34:22,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:23,003 INFO L225 Difference]: With dead ends: 28665 [2021-03-10 17:34:23,004 INFO L226 Difference]: Without dead ends: 22905 [2021-03-10 17:34:23,005 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 249.8ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:34:23,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22905 states. [2021-03-10 17:34:23,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22905 to 22905. [2021-03-10 17:34:23,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22905 states, 22904 states have (on average 4.213980090813831) internal successors, (96517), 22904 states have internal predecessors, (96517), 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) [2021-03-10 17:34:23,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22905 states to 22905 states and 96517 transitions. [2021-03-10 17:34:23,964 INFO L78 Accepts]: Start accepts. Automaton has 22905 states and 96517 transitions. Word has length 47 [2021-03-10 17:34:23,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:23,965 INFO L480 AbstractCegarLoop]: Abstraction has 22905 states and 96517 transitions. [2021-03-10 17:34:23,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-03-10 17:34:23,965 INFO L276 IsEmpty]: Start isEmpty. Operand 22905 states and 96517 transitions. [2021-03-10 17:34:23,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-03-10 17:34:23,998 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:23,999 INFO L519 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] [2021-03-10 17:34:23,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:34:23,999 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:24,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:24,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1090170101, now seen corresponding path program 1 times [2021-03-10 17:34:24,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:24,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709785151] [2021-03-10 17:34:24,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:24,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709785151] [2021-03-10 17:34:24,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:24,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:24,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407838704] [2021-03-10 17:34:24,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:24,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:24,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:24,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:24,173 INFO L87 Difference]: Start difference. First operand 22905 states and 96517 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-03-10 17:34:24,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:24,621 INFO L93 Difference]: Finished difference Result 25593 states and 106941 transitions. [2021-03-10 17:34:24,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:34:24,621 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2021-03-10 17:34:24,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:24,706 INFO L225 Difference]: With dead ends: 25593 [2021-03-10 17:34:24,706 INFO L226 Difference]: Without dead ends: 20889 [2021-03-10 17:34:24,707 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 109.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:34:24,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20889 states. [2021-03-10 17:34:25,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20889 to 20521. [2021-03-10 17:34:25,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20521 states, 20520 states have (on average 4.188742690058479) internal successors, (85953), 20520 states have internal predecessors, (85953), 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) [2021-03-10 17:34:25,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20521 states to 20521 states and 85953 transitions. [2021-03-10 17:34:25,488 INFO L78 Accepts]: Start accepts. Automaton has 20521 states and 85953 transitions. Word has length 48 [2021-03-10 17:34:25,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:25,491 INFO L480 AbstractCegarLoop]: Abstraction has 20521 states and 85953 transitions. [2021-03-10 17:34:25,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-03-10 17:34:25,491 INFO L276 IsEmpty]: Start isEmpty. Operand 20521 states and 85953 transitions. [2021-03-10 17:34:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-03-10 17:34:25,524 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:25,525 INFO L519 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] [2021-03-10 17:34:25,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:34:25,525 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:25,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:25,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1218797389, now seen corresponding path program 1 times [2021-03-10 17:34:25,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:25,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104720690] [2021-03-10 17:34:25,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:25,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:25,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104720690] [2021-03-10 17:34:25,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:25,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:25,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139419001] [2021-03-10 17:34:25,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:25,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:25,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:25,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:25,657 INFO L87 Difference]: Start difference. First operand 20521 states and 85953 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-03-10 17:34:26,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:26,261 INFO L93 Difference]: Finished difference Result 26353 states and 110081 transitions. [2021-03-10 17:34:26,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:34:26,262 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2021-03-10 17:34:26,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:26,331 INFO L225 Difference]: With dead ends: 26353 [2021-03-10 17:34:26,331 INFO L226 Difference]: Without dead ends: 22177 [2021-03-10 17:34:26,332 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 239.7ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:34:26,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22177 states. [2021-03-10 17:34:26,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22177 to 21565. [2021-03-10 17:34:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21565 states, 21564 states have (on average 4.1883231311445) internal successors, (90317), 21564 states have internal predecessors, (90317), 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) [2021-03-10 17:34:27,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21565 states to 21565 states and 90317 transitions. [2021-03-10 17:34:27,017 INFO L78 Accepts]: Start accepts. Automaton has 21565 states and 90317 transitions. Word has length 49 [2021-03-10 17:34:27,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:27,017 INFO L480 AbstractCegarLoop]: Abstraction has 21565 states and 90317 transitions. [2021-03-10 17:34:27,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-03-10 17:34:27,018 INFO L276 IsEmpty]: Start isEmpty. Operand 21565 states and 90317 transitions. [2021-03-10 17:34:27,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-03-10 17:34:27,051 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:27,051 INFO L519 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] [2021-03-10 17:34:27,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:34:27,051 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:27,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:27,052 INFO L82 PathProgramCache]: Analyzing trace with hash 577984027, now seen corresponding path program 1 times [2021-03-10 17:34:27,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:27,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244470847] [2021-03-10 17:34:27,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:27,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244470847] [2021-03-10 17:34:27,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:27,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:34:27,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872683837] [2021-03-10 17:34:27,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:34:27,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:27,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:34:27,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:34:27,151 INFO L87 Difference]: Start difference. First operand 21565 states and 90317 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-03-10 17:34:27,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:27,638 INFO L93 Difference]: Finished difference Result 30629 states and 127115 transitions. [2021-03-10 17:34:27,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:34:27,640 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 50 [2021-03-10 17:34:27,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:27,704 INFO L225 Difference]: With dead ends: 30629 [2021-03-10 17:34:27,705 INFO L226 Difference]: Without dead ends: 15041 [2021-03-10 17:34:27,705 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 118.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:34:27,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15041 states. [2021-03-10 17:34:28,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15041 to 15041. [2021-03-10 17:34:28,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15041 states, 15040 states have (on average 4.0880984042553195) internal successors, (61485), 15040 states have internal predecessors, (61485), 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) [2021-03-10 17:34:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15041 states to 15041 states and 61485 transitions. [2021-03-10 17:34:28,093 INFO L78 Accepts]: Start accepts. Automaton has 15041 states and 61485 transitions. Word has length 50 [2021-03-10 17:34:28,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:28,093 INFO L480 AbstractCegarLoop]: Abstraction has 15041 states and 61485 transitions. [2021-03-10 17:34:28,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-03-10 17:34:28,093 INFO L276 IsEmpty]: Start isEmpty. Operand 15041 states and 61485 transitions. [2021-03-10 17:34:28,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-03-10 17:34:28,118 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:28,119 INFO L519 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] [2021-03-10 17:34:28,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:34:28,119 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:28,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:28,120 INFO L82 PathProgramCache]: Analyzing trace with hash -429884610, now seen corresponding path program 1 times [2021-03-10 17:34:28,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:28,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114330727] [2021-03-10 17:34:28,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:28,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114330727] [2021-03-10 17:34:28,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:28,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:28,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8298687] [2021-03-10 17:34:28,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:28,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:28,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:28,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:28,212 INFO L87 Difference]: Start difference. First operand 15041 states and 61485 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-03-10 17:34:28,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:28,454 INFO L93 Difference]: Finished difference Result 20721 states and 84229 transitions. [2021-03-10 17:34:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:34:28,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2021-03-10 17:34:28,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:28,484 INFO L225 Difference]: With dead ends: 20721 [2021-03-10 17:34:28,484 INFO L226 Difference]: Without dead ends: 9901 [2021-03-10 17:34:28,484 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 117.3ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-03-10 17:34:28,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9901 states. [2021-03-10 17:34:28,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9901 to 9901. [2021-03-10 17:34:28,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9901 states, 9900 states have (on average 4.017070707070707) internal successors, (39769), 9900 states have internal predecessors, (39769), 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) [2021-03-10 17:34:28,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9901 states to 9901 states and 39769 transitions. [2021-03-10 17:34:28,897 INFO L78 Accepts]: Start accepts. Automaton has 9901 states and 39769 transitions. Word has length 51 [2021-03-10 17:34:28,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:28,897 INFO L480 AbstractCegarLoop]: Abstraction has 9901 states and 39769 transitions. [2021-03-10 17:34:28,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-03-10 17:34:28,897 INFO L276 IsEmpty]: Start isEmpty. Operand 9901 states and 39769 transitions. [2021-03-10 17:34:28,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-03-10 17:34:28,914 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:28,914 INFO L519 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] [2021-03-10 17:34:28,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 17:34:28,914 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:28,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:28,915 INFO L82 PathProgramCache]: Analyzing trace with hash -464840599, now seen corresponding path program 1 times [2021-03-10 17:34:28,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:28,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436023775] [2021-03-10 17:34:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:29,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:29,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436023775] [2021-03-10 17:34:29,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:29,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:34:29,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505945999] [2021-03-10 17:34:29,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:34:29,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:29,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:34:29,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:34:29,026 INFO L87 Difference]: Start difference. First operand 9901 states and 39769 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-03-10 17:34:29,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:29,185 INFO L93 Difference]: Finished difference Result 13653 states and 54401 transitions. [2021-03-10 17:34:29,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:34:29,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2021-03-10 17:34:29,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:29,211 INFO L225 Difference]: With dead ends: 13653 [2021-03-10 17:34:29,212 INFO L226 Difference]: Without dead ends: 9557 [2021-03-10 17:34:29,212 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 78.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:34:29,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9557 states. [2021-03-10 17:34:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9557 to 9557. [2021-03-10 17:34:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9557 states, 9556 states have (on average 3.998430305567183) internal successors, (38209), 9556 states have internal predecessors, (38209), 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) [2021-03-10 17:34:29,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9557 states to 9557 states and 38209 transitions. [2021-03-10 17:34:29,397 INFO L78 Accepts]: Start accepts. Automaton has 9557 states and 38209 transitions. Word has length 53 [2021-03-10 17:34:29,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:29,397 INFO L480 AbstractCegarLoop]: Abstraction has 9557 states and 38209 transitions. [2021-03-10 17:34:29,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-03-10 17:34:29,398 INFO L276 IsEmpty]: Start isEmpty. Operand 9557 states and 38209 transitions. [2021-03-10 17:34:29,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-03-10 17:34:29,410 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:29,410 INFO L519 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] [2021-03-10 17:34:29,411 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 17:34:29,411 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:29,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:29,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1707604209, now seen corresponding path program 1 times [2021-03-10 17:34:29,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:29,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600122196] [2021-03-10 17:34:29,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:29,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:29,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600122196] [2021-03-10 17:34:29,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:29,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:29,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690027418] [2021-03-10 17:34:29,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:29,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:29,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:29,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:29,639 INFO L87 Difference]: Start difference. First operand 9557 states and 38209 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-03-10 17:34:29,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:29,818 INFO L93 Difference]: Finished difference Result 11981 states and 47181 transitions. [2021-03-10 17:34:29,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:34:29,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-03-10 17:34:29,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:29,835 INFO L225 Difference]: With dead ends: 11981 [2021-03-10 17:34:29,835 INFO L226 Difference]: Without dead ends: 8141 [2021-03-10 17:34:29,835 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 253.1ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-03-10 17:34:29,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2021-03-10 17:34:29,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 8141. [2021-03-10 17:34:29,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8141 states, 8140 states have (on average 3.919041769041769) internal successors, (31901), 8140 states have internal predecessors, (31901), 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) [2021-03-10 17:34:29,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8141 states to 8141 states and 31901 transitions. [2021-03-10 17:34:29,965 INFO L78 Accepts]: Start accepts. Automaton has 8141 states and 31901 transitions. Word has length 54 [2021-03-10 17:34:29,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:29,965 INFO L480 AbstractCegarLoop]: Abstraction has 8141 states and 31901 transitions. [2021-03-10 17:34:29,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-03-10 17:34:29,966 INFO L276 IsEmpty]: Start isEmpty. Operand 8141 states and 31901 transitions. [2021-03-10 17:34:29,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-03-10 17:34:29,976 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:29,976 INFO L519 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] [2021-03-10 17:34:29,976 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-10 17:34:29,976 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:29,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:29,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1182973838, now seen corresponding path program 1 times [2021-03-10 17:34:29,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:29,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262267743] [2021-03-10 17:34:29,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:30,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262267743] [2021-03-10 17:34:30,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:30,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:34:30,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460046123] [2021-03-10 17:34:30,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:34:30,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:30,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:34:30,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:34:30,067 INFO L87 Difference]: Start difference. First operand 8141 states and 31901 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2021-03-10 17:34:30,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:30,265 INFO L93 Difference]: Finished difference Result 8474 states and 32453 transitions. [2021-03-10 17:34:30,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:34:30,265 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 55 [2021-03-10 17:34:30,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:30,279 INFO L225 Difference]: With dead ends: 8474 [2021-03-10 17:34:30,279 INFO L226 Difference]: Without dead ends: 5594 [2021-03-10 17:34:30,280 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 110.9ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:34:30,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5594 states. [2021-03-10 17:34:30,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5594 to 5594. [2021-03-10 17:34:30,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5594 states, 5593 states have (on average 3.7625603432862507) internal successors, (21044), 5593 states have internal predecessors, (21044), 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) [2021-03-10 17:34:30,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5594 states to 5594 states and 21044 transitions. [2021-03-10 17:34:30,357 INFO L78 Accepts]: Start accepts. Automaton has 5594 states and 21044 transitions. Word has length 55 [2021-03-10 17:34:30,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:30,358 INFO L480 AbstractCegarLoop]: Abstraction has 5594 states and 21044 transitions. [2021-03-10 17:34:30,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2021-03-10 17:34:30,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5594 states and 21044 transitions. [2021-03-10 17:34:30,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-03-10 17:34:30,364 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:30,364 INFO L519 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] [2021-03-10 17:34:30,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-10 17:34:30,364 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:30,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:30,365 INFO L82 PathProgramCache]: Analyzing trace with hash 2001147313, now seen corresponding path program 1 times [2021-03-10 17:34:30,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:30,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734945403] [2021-03-10 17:34:30,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:30,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:30,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734945403] [2021-03-10 17:34:30,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:30,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:34:30,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053165814] [2021-03-10 17:34:30,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:34:30,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:30,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:34:30,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:34:30,439 INFO L87 Difference]: Start difference. First operand 5594 states and 21044 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2021-03-10 17:34:30,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:30,602 INFO L93 Difference]: Finished difference Result 9352 states and 35211 transitions. [2021-03-10 17:34:30,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-10 17:34:30,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 57 [2021-03-10 17:34:30,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:30,616 INFO L225 Difference]: With dead ends: 9352 [2021-03-10 17:34:30,616 INFO L226 Difference]: Without dead ends: 6242 [2021-03-10 17:34:30,616 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 85.9ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:34:30,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2021-03-10 17:34:30,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 5594. [2021-03-10 17:34:30,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5594 states, 5593 states have (on average 3.6983729662077596) internal successors, (20685), 5593 states have internal predecessors, (20685), 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) [2021-03-10 17:34:30,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5594 states to 5594 states and 20685 transitions. [2021-03-10 17:34:30,695 INFO L78 Accepts]: Start accepts. Automaton has 5594 states and 20685 transitions. Word has length 57 [2021-03-10 17:34:30,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:30,696 INFO L480 AbstractCegarLoop]: Abstraction has 5594 states and 20685 transitions. [2021-03-10 17:34:30,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2021-03-10 17:34:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5594 states and 20685 transitions. [2021-03-10 17:34:30,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-03-10 17:34:30,702 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:30,702 INFO L519 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] [2021-03-10 17:34:30,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-10 17:34:30,702 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:30,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:30,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1796399525, now seen corresponding path program 1 times [2021-03-10 17:34:30,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:30,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29604316] [2021-03-10 17:34:30,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:30,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:30,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29604316] [2021-03-10 17:34:30,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:30,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:30,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896030651] [2021-03-10 17:34:30,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:30,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:30,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:30,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:30,765 INFO L87 Difference]: Start difference. First operand 5594 states and 20685 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-03-10 17:34:30,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:30,865 INFO L93 Difference]: Finished difference Result 7409 states and 27100 transitions. [2021-03-10 17:34:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 17:34:30,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2021-03-10 17:34:30,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:30,872 INFO L225 Difference]: With dead ends: 7409 [2021-03-10 17:34:30,873 INFO L226 Difference]: Without dead ends: 4011 [2021-03-10 17:34:30,874 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 73.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:34:30,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4011 states. [2021-03-10 17:34:30,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4011 to 3525. [2021-03-10 17:34:30,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3525 states, 3524 states have (on average 3.5192962542565267) internal successors, (12402), 3524 states have internal predecessors, (12402), 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) [2021-03-10 17:34:30,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3525 states to 3525 states and 12402 transitions. [2021-03-10 17:34:30,924 INFO L78 Accepts]: Start accepts. Automaton has 3525 states and 12402 transitions. Word has length 57 [2021-03-10 17:34:30,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:30,924 INFO L480 AbstractCegarLoop]: Abstraction has 3525 states and 12402 transitions. [2021-03-10 17:34:30,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-03-10 17:34:30,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3525 states and 12402 transitions. [2021-03-10 17:34:30,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-03-10 17:34:30,928 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:30,928 INFO L519 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] [2021-03-10 17:34:30,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-10 17:34:30,928 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:30,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:30,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1674860713, now seen corresponding path program 2 times [2021-03-10 17:34:30,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:30,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928462526] [2021-03-10 17:34:30,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:31,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:31,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928462526] [2021-03-10 17:34:31,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:31,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-10 17:34:31,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560656501] [2021-03-10 17:34:31,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-10 17:34:31,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:31,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-10 17:34:31,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-10 17:34:31,004 INFO L87 Difference]: Start difference. First operand 3525 states and 12402 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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) [2021-03-10 17:34:31,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:31,105 INFO L93 Difference]: Finished difference Result 2229 states and 7569 transitions. [2021-03-10 17:34:31,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:34:31,106 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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 57 [2021-03-10 17:34:31,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:31,106 INFO L225 Difference]: With dead ends: 2229 [2021-03-10 17:34:31,106 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 17:34:31,106 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 94.7ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:34:31,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 17:34:31,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 17:34:31,107 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) [2021-03-10 17:34:31,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 17:34:31,107 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2021-03-10 17:34:31,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:31,108 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 17:34:31,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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) [2021-03-10 17:34:31,108 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 17:34:31,108 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 17:34:31,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-10 17:34:31,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:34:31 BasicIcfg [2021-03-10 17:34:31,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:34:31,112 INFO L168 Benchmark]: Toolchain (without parser) took 18283.71 ms. Allocated memory was 255.9 MB in the beginning and 8.8 GB in the end (delta: 8.5 GB). Free memory was 234.7 MB in the beginning and 7.4 GB in the end (delta: -7.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. [2021-03-10 17:34:31,112 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:34:31,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.56 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 233.7 MB in the beginning and 323.2 MB in the end (delta: -89.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-10 17:34:31,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.56 ms. Allocated memory is still 360.7 MB. Free memory was 323.2 MB in the beginning and 321.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:34:31,117 INFO L168 Benchmark]: Boogie Preprocessor took 18.31 ms. Allocated memory is still 360.7 MB. Free memory was 321.5 MB in the beginning and 320.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:34:31,117 INFO L168 Benchmark]: RCFGBuilder took 449.10 ms. Allocated memory is still 360.7 MB. Free memory was 320.1 MB in the beginning and 295.9 MB in the end (delta: 24.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:34:31,119 INFO L168 Benchmark]: TraceAbstraction took 17390.65 ms. Allocated memory was 360.7 MB in the beginning and 8.8 GB in the end (delta: 8.4 GB). Free memory was 295.9 MB in the beginning and 7.4 GB in the end (delta: -7.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. [2021-03-10 17:34:31,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 385.56 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 233.7 MB in the beginning and 323.2 MB in the end (delta: -89.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.56 ms. Allocated memory is still 360.7 MB. Free memory was 323.2 MB in the beginning and 321.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.31 ms. Allocated memory is still 360.7 MB. Free memory was 321.5 MB in the beginning and 320.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 449.10 ms. Allocated memory is still 360.7 MB. Free memory was 320.1 MB in the beginning and 295.9 MB in the end (delta: 24.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 17390.65 ms. Allocated memory was 360.7 MB in the beginning and 8.8 GB in the end (delta: 8.4 GB). Free memory was 295.9 MB in the beginning and 7.4 GB in the end (delta: -7.1 GB). Peak memory consumption was 1.3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17258.7ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 461.9ms, AutomataDifference: 4816.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4787.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1418 SDtfs, 2452 SDslu, 4951 SDs, 0 SdLazy, 613 SolverSat, 117 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 431.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1641.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=49021occurred in iteration=0, InterpolantAutomatonStates: 128, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5363.7ms AutomataMinimizationTime, 12 MinimizatonAttempts, 2114 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 39.9ms SsaConstructionTime, 300.0ms SatisfiabilityAnalysisTime, 1268.0ms InterpolantComputationTime, 623 NumberOfCodeBlocks, 623 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 611 ConstructedInterpolants, 0 QuantifiedInterpolants, 2393 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...