/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:07:27,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:07:27,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:07:27,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 10:07:27,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:07:27,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:07:27,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:07:27,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:07:27,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:07:27,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:07:27,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:07:27,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:07:27,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:07:27,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:07:27,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:07:27,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:07:27,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:07:27,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:07:27,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:07:27,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:07:27,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 10:07:27,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:07:27,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:07:27,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:07:27,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:07:27,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:07:27,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:07:27,816 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:07:27,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:07:27,816 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:07:27,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:07:27,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:07:27,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:07:27,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:07:27,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:07:27,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:07:27,817 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:07:27,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:07:27,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:07:27,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:07:27,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:07:27,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:07:27,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:07:27,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:07:27,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:07:27,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:07:27,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:07:27,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:07:27,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:07:27,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:07:27,819 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:07:27,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:07:27,820 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:07:27,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:07:28,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:07:28,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:07:28,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:07:28,126 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:07:28,127 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:07:28,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2021-06-05 10:07:28,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/132841b5d/b4fad76e8af74faca59dd68c964521bc/FLAGc4beb3114 [2021-06-05 10:07:28,677 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:07:28,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2021-06-05 10:07:28,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/132841b5d/b4fad76e8af74faca59dd68c964521bc/FLAGc4beb3114 [2021-06-05 10:07:29,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/132841b5d/b4fad76e8af74faca59dd68c964521bc [2021-06-05 10:07:29,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:07:29,213 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:07:29,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:07:29,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:07:29,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:07:29,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:07:29" (1/1) ... [2021-06-05 10:07:29,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565fd7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29, skipping insertion in model container [2021-06-05 10:07:29,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:07:29" (1/1) ... [2021-06-05 10:07:29,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:07:29,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:07:29,404 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i[950,963] [2021-06-05 10:07:29,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:07:29,581 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:07:29,589 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i[950,963] [2021-06-05 10:07:29,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:07:29,670 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:07:29,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29 WrapperNode [2021-06-05 10:07:29,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:07:29,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:07:29,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:07:29,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:07:29,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29" (1/1) ... [2021-06-05 10:07:29,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29" (1/1) ... [2021-06-05 10:07:29,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:07:29,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:07:29,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:07:29,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:07:29,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29" (1/1) ... [2021-06-05 10:07:29,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29" (1/1) ... [2021-06-05 10:07:29,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29" (1/1) ... [2021-06-05 10:07:29,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29" (1/1) ... [2021-06-05 10:07:29,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29" (1/1) ... [2021-06-05 10:07:29,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29" (1/1) ... [2021-06-05 10:07:29,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29" (1/1) ... [2021-06-05 10:07:29,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:07:29,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:07:29,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:07:29,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:07:29,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:07:29,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:07:29,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:07:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:07:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:07:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:07:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:07:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:07:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:07:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:07:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:07:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-05 10:07:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-05 10:07:29,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:07:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:07:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:07:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:07:29,798 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:07:30,164 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:07:30,164 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:07:30,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:07:30 BoogieIcfgContainer [2021-06-05 10:07:30,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:07:30,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:07:30,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:07:30,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:07:30,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:07:29" (1/3) ... [2021-06-05 10:07:30,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6203a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:07:30, skipping insertion in model container [2021-06-05 10:07:30,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:29" (2/3) ... [2021-06-05 10:07:30,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6203a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:07:30, skipping insertion in model container [2021-06-05 10:07:30,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:07:30" (3/3) ... [2021-06-05 10:07:30,174 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2021-06-05 10:07:30,182 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:07:30,183 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:07:30,183 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:07:30,184 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:07:30,223 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,223 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,223 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,223 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,224 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,224 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,225 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,225 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,226 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,226 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,227 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,227 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,231 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,231 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,232 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,232 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,232 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,232 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,232 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,232 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,232 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,232 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,233 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,233 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,233 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,234 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,236 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,236 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,236 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,236 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,241 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,242 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,244 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,244 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,246 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,246 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,246 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,246 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:30,248 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:07:30,268 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 10:07:30,294 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:07:30,294 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:07:30,295 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:07:30,295 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:07:30,295 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:07:30,295 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:07:30,295 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:07:30,295 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:07:30,308 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 108 places, 97 transitions, 214 flow [2021-06-05 10:07:35,854 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51814 states, 51812 states have (on average 4.368717671581873) internal successors, (226352), 51813 states have internal predecessors, (226352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:36,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 51814 states, 51812 states have (on average 4.368717671581873) internal successors, (226352), 51813 states have internal predecessors, (226352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:36,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:07:36,104 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:36,105 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:07:36,105 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:36,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:36,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1675625032, now seen corresponding path program 1 times [2021-06-05 10:07:36,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:36,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218227546] [2021-06-05 10:07:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:36,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:36,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:36,666 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218227546] [2021-06-05 10:07:36,667 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218227546] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:36,667 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:36,667 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:07:36,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720375583] [2021-06-05 10:07:36,675 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:07:36,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:36,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:07:36,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:07:36,789 INFO L87 Difference]: Start difference. First operand has 51814 states, 51812 states have (on average 4.368717671581873) internal successors, (226352), 51813 states have internal predecessors, (226352), 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 7.857142857142857) internal successors, (55), 7 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) [2021-06-05 10:07:38,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:38,352 INFO L93 Difference]: Finished difference Result 115618 states and 491448 transitions. [2021-06-05 10:07:38,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:07:38,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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 [2021-06-05 10:07:38,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:38,850 INFO L225 Difference]: With dead ends: 115618 [2021-06-05 10:07:38,850 INFO L226 Difference]: Without dead ends: 36814 [2021-06-05 10:07:38,851 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 212.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:07:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36814 states. [2021-06-05 10:07:40,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36814 to 30478. [2021-06-05 10:07:40,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30478 states, 30477 states have (on average 4.128884076516718) internal successors, (125836), 30477 states have internal predecessors, (125836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:40,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30478 states to 30478 states and 125836 transitions. [2021-06-05 10:07:40,610 INFO L78 Accepts]: Start accepts. Automaton has 30478 states and 125836 transitions. Word has length 55 [2021-06-05 10:07:40,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:40,611 INFO L482 AbstractCegarLoop]: Abstraction has 30478 states and 125836 transitions. [2021-06-05 10:07:40,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2021-06-05 10:07:40,612 INFO L276 IsEmpty]: Start isEmpty. Operand 30478 states and 125836 transitions. [2021-06-05 10:07:40,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 10:07:40,674 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:40,675 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:07:40,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:07:40,675 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:40,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:40,678 INFO L82 PathProgramCache]: Analyzing trace with hash -728552423, now seen corresponding path program 1 times [2021-06-05 10:07:40,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:40,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616558728] [2021-06-05 10:07:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:40,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:40,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616558728] [2021-06-05 10:07:40,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616558728] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:40,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:40,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:07:40,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864159544] [2021-06-05 10:07:40,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:07:40,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:40,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:07:40,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:07:40,876 INFO L87 Difference]: Start difference. First operand 30478 states and 125836 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) [2021-06-05 10:07:41,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:41,675 INFO L93 Difference]: Finished difference Result 45766 states and 187560 transitions. [2021-06-05 10:07:41,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:07:41,676 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 [2021-06-05 10:07:41,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:41,894 INFO L225 Difference]: With dead ends: 45766 [2021-06-05 10:07:41,894 INFO L226 Difference]: Without dead ends: 36694 [2021-06-05 10:07:41,894 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 204.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:07:42,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36694 states. [2021-06-05 10:07:42,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36694 to 29230. [2021-06-05 10:07:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29230 states, 29229 states have (on average 4.115022751377057) internal successors, (120278), 29229 states have internal predecessors, (120278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:43,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29230 states to 29230 states and 120278 transitions. [2021-06-05 10:07:43,416 INFO L78 Accepts]: Start accepts. Automaton has 29230 states and 120278 transitions. Word has length 57 [2021-06-05 10:07:43,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:43,418 INFO L482 AbstractCegarLoop]: Abstraction has 29230 states and 120278 transitions. [2021-06-05 10:07:43,418 INFO L483 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) [2021-06-05 10:07:43,419 INFO L276 IsEmpty]: Start isEmpty. Operand 29230 states and 120278 transitions. [2021-06-05 10:07:43,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 10:07:43,470 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:43,470 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:07:43,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:07:43,470 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:43,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:43,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1714446202, now seen corresponding path program 1 times [2021-06-05 10:07:43,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:43,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126310042] [2021-06-05 10:07:43,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:43,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:43,638 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:43,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126310042] [2021-06-05 10:07:43,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126310042] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:43,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:43,639 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:07:43,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368049508] [2021-06-05 10:07:43,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:07:43,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:43,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:07:43,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:07:43,641 INFO L87 Difference]: Start difference. First operand 29230 states and 120278 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:44,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:44,300 INFO L93 Difference]: Finished difference Result 50986 states and 207167 transitions. [2021-06-05 10:07:44,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:07:44,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 59 [2021-06-05 10:07:44,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:44,441 INFO L225 Difference]: With dead ends: 50986 [2021-06-05 10:07:44,441 INFO L226 Difference]: Without dead ends: 29028 [2021-06-05 10:07:44,443 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 132.3ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:07:44,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29028 states. [2021-06-05 10:07:45,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29028 to 24052. [2021-06-05 10:07:45,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24051 states have (on average 4.042576192258118) internal successors, (97228), 24051 states have internal predecessors, (97228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:45,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 97228 transitions. [2021-06-05 10:07:45,488 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 97228 transitions. Word has length 59 [2021-06-05 10:07:45,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:45,488 INFO L482 AbstractCegarLoop]: Abstraction has 24052 states and 97228 transitions. [2021-06-05 10:07:45,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:45,489 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 97228 transitions. [2021-06-05 10:07:45,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:07:45,556 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:45,556 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:07:45,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:07:45,556 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:45,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:45,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1714578911, now seen corresponding path program 1 times [2021-06-05 10:07:45,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:45,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713804673] [2021-06-05 10:07:45,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:45,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:45,667 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:45,667 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713804673] [2021-06-05 10:07:45,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713804673] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:45,668 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:45,668 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:07:45,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147064929] [2021-06-05 10:07:45,668 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:07:45,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:45,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:07:45,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:07:45,669 INFO L87 Difference]: Start difference. First operand 24052 states and 97228 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:45,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:45,881 INFO L93 Difference]: Finished difference Result 25332 states and 102012 transitions. [2021-06-05 10:07:45,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:07:45,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 10:07:45,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:45,960 INFO L225 Difference]: With dead ends: 25332 [2021-06-05 10:07:45,960 INFO L226 Difference]: Without dead ends: 23092 [2021-06-05 10:07:45,961 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 85.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:07:46,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23092 states. [2021-06-05 10:07:46,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23092 to 22068. [2021-06-05 10:07:46,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22068 states, 22067 states have (on average 4.027552453890425) internal successors, (88876), 22067 states have internal predecessors, (88876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:46,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22068 states to 22068 states and 88876 transitions. [2021-06-05 10:07:46,735 INFO L78 Accepts]: Start accepts. Automaton has 22068 states and 88876 transitions. Word has length 61 [2021-06-05 10:07:46,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:46,735 INFO L482 AbstractCegarLoop]: Abstraction has 22068 states and 88876 transitions. [2021-06-05 10:07:46,735 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:46,735 INFO L276 IsEmpty]: Start isEmpty. Operand 22068 states and 88876 transitions. [2021-06-05 10:07:46,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 10:07:46,770 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:46,770 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:07:46,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:07:46,771 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:46,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:46,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1579705773, now seen corresponding path program 1 times [2021-06-05 10:07:46,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:46,771 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166535247] [2021-06-05 10:07:46,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:46,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:46,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166535247] [2021-06-05 10:07:46,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166535247] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:46,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:46,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:07:46,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468627786] [2021-06-05 10:07:46,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:07:46,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:46,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:07:46,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:07:46,874 INFO L87 Difference]: Start difference. First operand 22068 states and 88876 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:47,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:47,304 INFO L93 Difference]: Finished difference Result 46036 states and 181948 transitions. [2021-06-05 10:07:47,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-05 10:07:47,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-05 10:07:47,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:47,358 INFO L225 Difference]: With dead ends: 46036 [2021-06-05 10:07:47,358 INFO L226 Difference]: Without dead ends: 21276 [2021-06-05 10:07:47,359 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 182.7ms TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-06-05 10:07:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21276 states. [2021-06-05 10:07:47,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21276 to 16412. [2021-06-05 10:07:48,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16412 states, 16411 states have (on average 3.888245688867223) internal successors, (63810), 16411 states have internal predecessors, (63810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:48,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16412 states to 16412 states and 63810 transitions. [2021-06-05 10:07:48,044 INFO L78 Accepts]: Start accepts. Automaton has 16412 states and 63810 transitions. Word has length 62 [2021-06-05 10:07:48,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:48,044 INFO L482 AbstractCegarLoop]: Abstraction has 16412 states and 63810 transitions. [2021-06-05 10:07:48,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:48,044 INFO L276 IsEmpty]: Start isEmpty. Operand 16412 states and 63810 transitions. [2021-06-05 10:07:48,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 10:07:48,067 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:48,068 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:07:48,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:07:48,068 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:48,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:48,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1358272108, now seen corresponding path program 1 times [2021-06-05 10:07:48,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:48,068 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732694322] [2021-06-05 10:07:48,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:48,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:48,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:48,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732694322] [2021-06-05 10:07:48,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732694322] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:48,169 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:48,169 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:07:48,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725733592] [2021-06-05 10:07:48,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:07:48,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:48,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:07:48,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:07:48,172 INFO L87 Difference]: Start difference. First operand 16412 states and 63810 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:48,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:48,710 INFO L93 Difference]: Finished difference Result 25564 states and 98786 transitions. [2021-06-05 10:07:48,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:07:48,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-05 10:07:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:48,780 INFO L225 Difference]: With dead ends: 25564 [2021-06-05 10:07:48,781 INFO L226 Difference]: Without dead ends: 19804 [2021-06-05 10:07:48,781 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 137.5ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:07:48,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19804 states. [2021-06-05 10:07:49,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19804 to 15084. [2021-06-05 10:07:49,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15084 states, 15083 states have (on average 3.872571769541868) internal successors, (58410), 15083 states have internal predecessors, (58410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:49,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15084 states to 15084 states and 58410 transitions. [2021-06-05 10:07:49,195 INFO L78 Accepts]: Start accepts. Automaton has 15084 states and 58410 transitions. Word has length 62 [2021-06-05 10:07:49,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:49,195 INFO L482 AbstractCegarLoop]: Abstraction has 15084 states and 58410 transitions. [2021-06-05 10:07:49,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:49,196 INFO L276 IsEmpty]: Start isEmpty. Operand 15084 states and 58410 transitions. [2021-06-05 10:07:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 10:07:49,219 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:49,220 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:07:49,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:07:49,220 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:49,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:49,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1753261216, now seen corresponding path program 1 times [2021-06-05 10:07:49,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:49,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573025935] [2021-06-05 10:07:49,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:49,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:49,299 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:49,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573025935] [2021-06-05 10:07:49,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573025935] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:49,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:49,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:07:49,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838393856] [2021-06-05 10:07:49,300 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:07:49,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:49,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:07:49,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:07:49,301 INFO L87 Difference]: Start difference. First operand 15084 states and 58410 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:49,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:49,487 INFO L93 Difference]: Finished difference Result 20124 states and 76962 transitions. [2021-06-05 10:07:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 10:07:49,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2021-06-05 10:07:49,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:49,517 INFO L225 Difference]: With dead ends: 20124 [2021-06-05 10:07:49,517 INFO L226 Difference]: Without dead ends: 9479 [2021-06-05 10:07:49,518 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 70.0ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:07:49,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9479 states. [2021-06-05 10:07:49,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9479 to 9479. [2021-06-05 10:07:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9479 states, 9478 states have (on average 3.8269677147077443) internal successors, (36272), 9478 states have internal predecessors, (36272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:49,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9479 states to 9479 states and 36272 transitions. [2021-06-05 10:07:49,997 INFO L78 Accepts]: Start accepts. Automaton has 9479 states and 36272 transitions. Word has length 63 [2021-06-05 10:07:49,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:49,997 INFO L482 AbstractCegarLoop]: Abstraction has 9479 states and 36272 transitions. [2021-06-05 10:07:49,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:49,998 INFO L276 IsEmpty]: Start isEmpty. Operand 9479 states and 36272 transitions. [2021-06-05 10:07:50,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 10:07:50,028 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:50,028 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:07:50,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:07:50,028 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:50,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:50,028 INFO L82 PathProgramCache]: Analyzing trace with hash 261023848, now seen corresponding path program 2 times [2021-06-05 10:07:50,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:50,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888149301] [2021-06-05 10:07:50,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:50,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:50,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:50,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888149301] [2021-06-05 10:07:50,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888149301] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:50,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:50,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:07:50,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985038107] [2021-06-05 10:07:50,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:07:50,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:50,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:07:50,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:07:50,129 INFO L87 Difference]: Start difference. First operand 9479 states and 36272 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:50,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:50,290 INFO L93 Difference]: Finished difference Result 12330 states and 46729 transitions. [2021-06-05 10:07:50,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:07:50,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 63 [2021-06-05 10:07:50,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:50,310 INFO L225 Difference]: With dead ends: 12330 [2021-06-05 10:07:50,311 INFO L226 Difference]: Without dead ends: 9130 [2021-06-05 10:07:50,311 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 90.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:07:50,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9130 states. [2021-06-05 10:07:50,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9130 to 9130. [2021-06-05 10:07:50,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9129 states have (on average 3.8041406506736775) internal successors, (34728), 9129 states have internal predecessors, (34728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 34728 transitions. [2021-06-05 10:07:50,492 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 34728 transitions. Word has length 63 [2021-06-05 10:07:50,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:50,492 INFO L482 AbstractCegarLoop]: Abstraction has 9130 states and 34728 transitions. [2021-06-05 10:07:50,492 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:50,492 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 34728 transitions. [2021-06-05 10:07:50,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-05 10:07:50,507 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:50,507 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:07:50,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:07:50,507 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:50,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:50,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1335715918, now seen corresponding path program 1 times [2021-06-05 10:07:50,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:50,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040271175] [2021-06-05 10:07:50,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:50,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:50,578 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:50,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040271175] [2021-06-05 10:07:50,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040271175] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:50,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:50,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:07:50,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805331452] [2021-06-05 10:07:50,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:07:50,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:50,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:07:50,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:07:50,580 INFO L87 Difference]: Start difference. First operand 9130 states and 34728 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:50,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:50,738 INFO L93 Difference]: Finished difference Result 10600 states and 39578 transitions. [2021-06-05 10:07:50,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:07:50,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-06-05 10:07:50,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:50,759 INFO L225 Difference]: With dead ends: 10600 [2021-06-05 10:07:50,759 INFO L226 Difference]: Without dead ends: 7660 [2021-06-05 10:07:50,759 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 84.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:07:50,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7660 states. [2021-06-05 10:07:50,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7660 to 7660. [2021-06-05 10:07:50,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7660 states, 7659 states have (on average 3.7181094137615878) internal successors, (28477), 7659 states have internal predecessors, (28477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7660 states to 7660 states and 28477 transitions. [2021-06-05 10:07:50,930 INFO L78 Accepts]: Start accepts. Automaton has 7660 states and 28477 transitions. Word has length 64 [2021-06-05 10:07:50,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:50,930 INFO L482 AbstractCegarLoop]: Abstraction has 7660 states and 28477 transitions. [2021-06-05 10:07:50,930 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:50,930 INFO L276 IsEmpty]: Start isEmpty. Operand 7660 states and 28477 transitions. [2021-06-05 10:07:50,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 10:07:50,942 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:50,943 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:07:50,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 10:07:50,943 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:50,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:50,943 INFO L82 PathProgramCache]: Analyzing trace with hash 530155275, now seen corresponding path program 1 times [2021-06-05 10:07:50,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:50,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450822973] [2021-06-05 10:07:50,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:51,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:51,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:51,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450822973] [2021-06-05 10:07:51,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450822973] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:51,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:51,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:07:51,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176071041] [2021-06-05 10:07:51,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:07:51,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:51,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:07:51,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:07:51,073 INFO L87 Difference]: Start difference. First operand 7660 states and 28477 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:51,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:51,373 INFO L93 Difference]: Finished difference Result 7003 states and 25387 transitions. [2021-06-05 10:07:51,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:07:51,373 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-05 10:07:51,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:51,384 INFO L225 Difference]: With dead ends: 7003 [2021-06-05 10:07:51,385 INFO L226 Difference]: Without dead ends: 4591 [2021-06-05 10:07:51,385 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 108.5ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:07:51,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2021-06-05 10:07:51,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 4591. [2021-06-05 10:07:51,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 4590 states have (on average 3.555773420479303) internal successors, (16321), 4590 states have internal predecessors, (16321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:51,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 16321 transitions. [2021-06-05 10:07:51,459 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 16321 transitions. Word has length 65 [2021-06-05 10:07:51,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:51,459 INFO L482 AbstractCegarLoop]: Abstraction has 4591 states and 16321 transitions. [2021-06-05 10:07:51,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:51,459 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 16321 transitions. [2021-06-05 10:07:51,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-05 10:07:51,465 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:51,465 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:07:51,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 10:07:51,465 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:51,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:51,466 INFO L82 PathProgramCache]: Analyzing trace with hash -59477818, now seen corresponding path program 1 times [2021-06-05 10:07:51,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:51,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168338461] [2021-06-05 10:07:51,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:51,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:51,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168338461] [2021-06-05 10:07:51,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168338461] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:51,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:51,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:07:51,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854984656] [2021-06-05 10:07:51,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:07:51,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:51,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:07:51,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:07:51,564 INFO L87 Difference]: Start difference. First operand 4591 states and 16321 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:51,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:51,666 INFO L93 Difference]: Finished difference Result 5944 states and 20931 transitions. [2021-06-05 10:07:51,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:07:51,667 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2021-06-05 10:07:51,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:51,680 INFO L225 Difference]: With dead ends: 5944 [2021-06-05 10:07:51,680 INFO L226 Difference]: Without dead ends: 4869 [2021-06-05 10:07:51,680 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 76.8ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 10:07:51,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2021-06-05 10:07:51,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4383. [2021-06-05 10:07:51,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4383 states, 4382 states have (on average 3.543815609310817) internal successors, (15529), 4382 states have internal predecessors, (15529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:51,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4383 states to 4383 states and 15529 transitions. [2021-06-05 10:07:51,772 INFO L78 Accepts]: Start accepts. Automaton has 4383 states and 15529 transitions. Word has length 67 [2021-06-05 10:07:51,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:51,773 INFO L482 AbstractCegarLoop]: Abstraction has 4383 states and 15529 transitions. [2021-06-05 10:07:51,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:51,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4383 states and 15529 transitions. [2021-06-05 10:07:51,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-05 10:07:51,780 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:51,780 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:07:51,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 10:07:51,780 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:51,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:51,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1749123924, now seen corresponding path program 2 times [2021-06-05 10:07:51,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:51,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764354337] [2021-06-05 10:07:51,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:51,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:51,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764354337] [2021-06-05 10:07:51,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764354337] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:51,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:51,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 10:07:51,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789061373] [2021-06-05 10:07:51,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:07:51,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:51,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:07:51,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:07:51,889 INFO L87 Difference]: Start difference. First operand 4383 states and 15529 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:52,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:52,001 INFO L93 Difference]: Finished difference Result 3087 states and 10696 transitions. [2021-06-05 10:07:52,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:07:52,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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 67 [2021-06-05 10:07:52,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:52,002 INFO L225 Difference]: With dead ends: 3087 [2021-06-05 10:07:52,002 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:07:52,002 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 95.9ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:07:52,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:07:52,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:07:52,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:52,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:07:52,003 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2021-06-05 10:07:52,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:52,003 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:07:52,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:52,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:07:52,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:07:52,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 10:07:52,005 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:07:52,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:07:52 BasicIcfg [2021-06-05 10:07:52,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:07:52,008 INFO L168 Benchmark]: Toolchain (without parser) took 22794.96 ms. Allocated memory was 354.4 MB in the beginning and 10.7 GB in the end (delta: 10.3 GB). Free memory was 317.3 MB in the beginning and 8.9 GB in the end (delta: -8.6 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2021-06-05 10:07:52,008 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 354.4 MB. Free memory was 335.3 MB in the beginning and 335.2 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:07:52,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.14 ms. Allocated memory is still 354.4 MB. Free memory was 317.1 MB in the beginning and 315.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. [2021-06-05 10:07:52,008 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.46 ms. Allocated memory is still 354.4 MB. Free memory was 315.1 MB in the beginning and 313.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:07:52,009 INFO L168 Benchmark]: Boogie Preprocessor took 20.78 ms. Allocated memory is still 354.4 MB. Free memory was 313.0 MB in the beginning and 311.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:07:52,009 INFO L168 Benchmark]: RCFGBuilder took 438.08 ms. Allocated memory is still 354.4 MB. Free memory was 311.9 MB in the beginning and 285.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 10:07:52,009 INFO L168 Benchmark]: TraceAbstraction took 21839.89 ms. Allocated memory was 354.4 MB in the beginning and 10.7 GB in the end (delta: 10.3 GB). Free memory was 284.6 MB in the beginning and 8.9 GB in the end (delta: -8.6 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2021-06-05 10:07:52,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 354.4 MB. Free memory was 335.3 MB in the beginning and 335.2 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 456.14 ms. Allocated memory is still 354.4 MB. Free memory was 317.1 MB in the beginning and 315.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 34.46 ms. Allocated memory is still 354.4 MB. Free memory was 315.1 MB in the beginning and 313.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.78 ms. Allocated memory is still 354.4 MB. Free memory was 313.0 MB in the beginning and 311.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 438.08 ms. Allocated memory is still 354.4 MB. Free memory was 311.9 MB in the beginning and 285.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 21839.89 ms. Allocated memory was 354.4 MB in the beginning and 10.7 GB in the end (delta: 10.3 GB). Free memory was 284.6 MB in the beginning and 8.9 GB in the end (delta: -8.6 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 126 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21711.9ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 581.6ms, AutomataDifference: 6507.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5559.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1609 SDtfs, 2769 SDslu, 5755 SDs, 0 SdLazy, 557 SolverSat, 135 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 472.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1482.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51814occurred in iteration=0, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7169.8ms AutomataMinimizationTime, 12 MinimizatonAttempts, 29870 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 36.6ms SsaConstructionTime, 280.5ms SatisfiabilityAnalysisTime, 1347.1ms InterpolantComputationTime, 745 NumberOfCodeBlocks, 745 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 733 ConstructedInterpolants, 0 QuantifiedInterpolants, 3263 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...