/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-344d29da17dfcedfb91d6006a5dbd12b556a868d-344d29d [2021-02-16 17:21:25,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-16 17:21:25,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-16 17:21:25,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-16 17:21:25,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-16 17:21:25,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-16 17:21:25,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-16 17:21:25,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-16 17:21:25,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-16 17:21:25,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-16 17:21:25,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-16 17:21:25,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-16 17:21:25,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-16 17:21:25,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-16 17:21:25,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-16 17:21:25,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-16 17:21:25,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-16 17:21:25,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-16 17:21:25,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-16 17:21:25,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-16 17:21:25,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-16 17:21:25,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-16 17:21:25,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-16 17:21:25,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-16 17:21:25,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-16 17:21:25,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-16 17:21:25,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-16 17:21:25,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-16 17:21:25,141 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-02-16 17:21:25,193 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-16 17:21:25,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-16 17:21:25,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-16 17:21:25,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-16 17:21:25,196 INFO L138 SettingsManager]: * Use SBE=true [2021-02-16 17:21:25,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-16 17:21:25,196 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-16 17:21:25,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-16 17:21:25,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-16 17:21:25,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-16 17:21:25,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-16 17:21:25,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-16 17:21:25,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-16 17:21:25,202 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-16 17:21:25,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-16 17:21:25,203 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-16 17:21:25,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-16 17:21:25,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-16 17:21:25,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-16 17:21:25,204 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-16 17:21:25,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-16 17:21:25,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-16 17:21:25,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-16 17:21:25,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-16 17:21:25,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-16 17:21:25,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-16 17:21:25,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-16 17:21:25,206 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-16 17:21:25,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-16 17:21:25,206 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-16 17:21:25,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-16 17:21:25,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-16 17:21:25,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-16 17:21:25,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-16 17:21:25,663 INFO L275 PluginConnector]: CDTParser initialized [2021-02-16 17:21:25,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2021-02-16 17:21:25,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d65bb5f/f89b1dfb54234b7dac252cbdb8b3f810/FLAGb88a3f682 [2021-02-16 17:21:26,447 INFO L306 CDTParser]: Found 1 translation units. [2021-02-16 17:21:26,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2021-02-16 17:21:26,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d65bb5f/f89b1dfb54234b7dac252cbdb8b3f810/FLAGb88a3f682 [2021-02-16 17:21:26,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d65bb5f/f89b1dfb54234b7dac252cbdb8b3f810 [2021-02-16 17:21:26,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-16 17:21:26,690 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-02-16 17:21:26,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-16 17:21:26,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-16 17:21:26,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-16 17:21:26,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 05:21:26" (1/1) ... [2021-02-16 17:21:26,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d936ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:26, skipping insertion in model container [2021-02-16 17:21:26,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 05:21:26" (1/1) ... [2021-02-16 17:21:26,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-16 17:21:26,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-16 17:21:26,931 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i[950,963] [2021-02-16 17:21:27,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 17:21:27,146 INFO L203 MainTranslator]: Completed pre-run [2021-02-16 17:21:27,163 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i[950,963] [2021-02-16 17:21:27,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 17:21:27,366 INFO L208 MainTranslator]: Completed translation [2021-02-16 17:21:27,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:27 WrapperNode [2021-02-16 17:21:27,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-16 17:21:27,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-16 17:21:27,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-16 17:21:27,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-16 17:21:27,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:27" (1/1) ... [2021-02-16 17:21:27,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:27" (1/1) ... [2021-02-16 17:21:27,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-16 17:21:27,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-16 17:21:27,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-16 17:21:27,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-16 17:21:27,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:27" (1/1) ... [2021-02-16 17:21:27,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:27" (1/1) ... [2021-02-16 17:21:27,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:27" (1/1) ... [2021-02-16 17:21:27,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:27" (1/1) ... [2021-02-16 17:21:27,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:27" (1/1) ... [2021-02-16 17:21:27,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:27" (1/1) ... [2021-02-16 17:21:27,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:27" (1/1) ... [2021-02-16 17:21:27,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-16 17:21:27,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-16 17:21:27,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-16 17:21:27,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-16 17:21:27,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:27" (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 [2021-02-16 17:21:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-16 17:21:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-02-16 17:21:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-16 17:21:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-16 17:21:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-02-16 17:21:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-02-16 17:21:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-02-16 17:21:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-02-16 17:21:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-02-16 17:21:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-02-16 17:21:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-16 17:21:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-02-16 17:21:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-16 17:21:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-16 17:21:27,543 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-16 17:21:27,923 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-16 17:21:27,924 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-02-16 17:21:27,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:21:27 BoogieIcfgContainer [2021-02-16 17:21:27,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-16 17:21:27,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-16 17:21:27,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-16 17:21:27,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-16 17:21:27,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 05:21:26" (1/3) ... [2021-02-16 17:21:27,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424459ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:21:27, skipping insertion in model container [2021-02-16 17:21:27,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:27" (2/3) ... [2021-02-16 17:21:27,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424459ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:21:27, skipping insertion in model container [2021-02-16 17:21:27,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:21:27" (3/3) ... [2021-02-16 17:21:27,935 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc.i [2021-02-16 17:21:27,942 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-16 17:21:27,943 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-16 17:21:27,948 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-16 17:21:27,949 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-16 17:21:27,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,981 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,981 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,984 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,984 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,985 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,985 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,985 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,986 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,986 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,986 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,986 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,987 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,987 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,988 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,988 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,989 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,989 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,989 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,989 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,992 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,992 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,992 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,993 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,998 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,998 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:27,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:28,001 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:28,001 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:28,002 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:28,002 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:28,004 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-02-16 17:21:28,026 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-02-16 17:21:28,050 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-16 17:21:28,050 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-16 17:21:28,051 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-16 17:21:28,051 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-16 17:21:28,051 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-16 17:21:28,051 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-16 17:21:28,051 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-16 17:21:28,051 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-16 17:21:28,064 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 73 transitions, 161 flow [2021-02-16 17:21:28,922 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7593 states, 7591 states have (on average 3.553155052035305) internal successors, (26972), 7592 states have internal predecessors, (26972), 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) [2021-02-16 17:21:28,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 7593 states, 7591 states have (on average 3.553155052035305) internal successors, (26972), 7592 states have internal predecessors, (26972), 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) [2021-02-16 17:21:29,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-02-16 17:21:29,039 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:29,043 INFO L505 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] [2021-02-16 17:21:29,043 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:29,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:29,056 INFO L82 PathProgramCache]: Analyzing trace with hash 882178177, now seen corresponding path program 1 times [2021-02-16 17:21:29,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:29,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510685709] [2021-02-16 17:21:29,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:29,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:29,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:29,511 WARN L141 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-02-16 17:21:29,512 WARN L147 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size 13 [2021-02-16 17:21:29,539 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:21:29,541 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:21:29,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:29,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:29,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:29,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:29,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:29,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:29,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510685709] [2021-02-16 17:21:29,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:29,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-16 17:21:29,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32847976] [2021-02-16 17:21:29,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-16 17:21:29,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:29,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-16 17:21:29,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-16 17:21:29,650 INFO L87 Difference]: Start difference. First operand has 7593 states, 7591 states have (on average 3.553155052035305) internal successors, (26972), 7592 states have internal predecessors, (26972), 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 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2021-02-16 17:21:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:30,084 INFO L93 Difference]: Finished difference Result 17143 states and 58729 transitions. [2021-02-16 17:21:30,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-16 17:21:30,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2021-02-16 17:21:30,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:30,163 INFO L225 Difference]: With dead ends: 17143 [2021-02-16 17:21:30,164 INFO L226 Difference]: Without dead ends: 5513 [2021-02-16 17:21:30,165 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-02-16 17:21:30,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5513 states. [2021-02-16 17:21:30,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5513 to 4601. [2021-02-16 17:21:30,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4601 states, 4600 states have (on average 3.3543478260869564) internal successors, (15430), 4600 states have internal predecessors, (15430), 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) [2021-02-16 17:21:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4601 states to 4601 states and 15430 transitions. [2021-02-16 17:21:30,646 INFO L78 Accepts]: Start accepts. Automaton has 4601 states and 15430 transitions. Word has length 39 [2021-02-16 17:21:30,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:30,647 INFO L480 AbstractCegarLoop]: Abstraction has 4601 states and 15430 transitions. [2021-02-16 17:21:30,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2021-02-16 17:21:30,647 INFO L276 IsEmpty]: Start isEmpty. Operand 4601 states and 15430 transitions. [2021-02-16 17:21:30,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-16 17:21:30,658 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:30,658 INFO L505 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] [2021-02-16 17:21:30,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-16 17:21:30,659 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:30,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:30,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1735911584, now seen corresponding path program 1 times [2021-02-16 17:21:30,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:30,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988998138] [2021-02-16 17:21:30,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:30,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:30,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:30,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:30,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:30,756 WARN L141 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-02-16 17:21:30,757 WARN L147 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size 13 [2021-02-16 17:21:30,767 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:21:30,768 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:21:30,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:30,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:30,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:30,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:30,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:30,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:30,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988998138] [2021-02-16 17:21:30,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:30,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:21:30,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866716290] [2021-02-16 17:21:30,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:21:30,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:30,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:21:30,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:21:30,821 INFO L87 Difference]: Start difference. First operand 4601 states and 15430 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) [2021-02-16 17:21:31,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:31,156 INFO L93 Difference]: Finished difference Result 6661 states and 21938 transitions. [2021-02-16 17:21:31,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-16 17:21:31,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 41 [2021-02-16 17:21:31,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:31,198 INFO L225 Difference]: With dead ends: 6661 [2021-02-16 17:21:31,199 INFO L226 Difference]: Without dead ends: 4973 [2021-02-16 17:21:31,200 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:21:31,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4973 states. [2021-02-16 17:21:31,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4973 to 4301. [2021-02-16 17:21:31,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4300 states have (on average 3.3269767441860467) internal successors, (14306), 4300 states have internal predecessors, (14306), 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) [2021-02-16 17:21:31,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 14306 transitions. [2021-02-16 17:21:31,394 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 14306 transitions. Word has length 41 [2021-02-16 17:21:31,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:31,395 INFO L480 AbstractCegarLoop]: Abstraction has 4301 states and 14306 transitions. [2021-02-16 17:21:31,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) [2021-02-16 17:21:31,396 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 14306 transitions. [2021-02-16 17:21:31,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-16 17:21:31,408 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:31,408 INFO L505 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] [2021-02-16 17:21:31,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-16 17:21:31,409 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:31,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:31,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1409436546, now seen corresponding path program 1 times [2021-02-16 17:21:31,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:31,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677812631] [2021-02-16 17:21:31,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:31,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:31,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:31,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:31,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:31,534 WARN L141 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-02-16 17:21:31,535 WARN L147 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size 13 [2021-02-16 17:21:31,546 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:21:31,547 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:21:31,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:31,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:31,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:31,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:31,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:31,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:31,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:31,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677812631] [2021-02-16 17:21:31,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:31,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:21:31,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583056248] [2021-02-16 17:21:31,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:21:31,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:31,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:21:31,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:21:31,609 INFO L87 Difference]: Start difference. First operand 4301 states and 14306 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) [2021-02-16 17:21:31,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:31,892 INFO L93 Difference]: Finished difference Result 5549 states and 18150 transitions. [2021-02-16 17:21:31,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-16 17:21:31,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 41 [2021-02-16 17:21:31,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:31,932 INFO L225 Difference]: With dead ends: 5549 [2021-02-16 17:21:31,932 INFO L226 Difference]: Without dead ends: 4445 [2021-02-16 17:21:31,932 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:21:31,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4445 states. [2021-02-16 17:21:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4445 to 3741. [2021-02-16 17:21:32,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3741 states, 3740 states have (on average 3.3) internal successors, (12342), 3740 states have internal predecessors, (12342), 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) [2021-02-16 17:21:32,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 12342 transitions. [2021-02-16 17:21:32,079 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 12342 transitions. Word has length 41 [2021-02-16 17:21:32,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:32,080 INFO L480 AbstractCegarLoop]: Abstraction has 3741 states and 12342 transitions. [2021-02-16 17:21:32,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) [2021-02-16 17:21:32,080 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 12342 transitions. [2021-02-16 17:21:32,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-02-16 17:21:32,089 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:32,089 INFO L505 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] [2021-02-16 17:21:32,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-16 17:21:32,089 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:32,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:32,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1508487137, now seen corresponding path program 1 times [2021-02-16 17:21:32,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:32,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927162595] [2021-02-16 17:21:32,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:32,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:32,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:32,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:32,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:32,242 WARN L141 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-02-16 17:21:32,244 WARN L147 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size 13 [2021-02-16 17:21:32,255 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:21:32,258 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:21:32,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:32,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:32,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:32,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:32,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:32,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:32,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:32,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927162595] [2021-02-16 17:21:32,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:32,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:21:32,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732827853] [2021-02-16 17:21:32,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:21:32,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:32,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:21:32,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:21:32,313 INFO L87 Difference]: Start difference. First operand 3741 states and 12342 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-02-16 17:21:32,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:32,571 INFO L93 Difference]: Finished difference Result 4765 states and 15554 transitions. [2021-02-16 17:21:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-16 17:21:32,572 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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 43 [2021-02-16 17:21:32,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:32,605 INFO L225 Difference]: With dead ends: 4765 [2021-02-16 17:21:32,605 INFO L226 Difference]: Without dead ends: 4205 [2021-02-16 17:21:32,606 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:21:32,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4205 states. [2021-02-16 17:21:32,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4205 to 3501. [2021-02-16 17:21:32,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3501 states, 3500 states have (on average 3.282857142857143) internal successors, (11490), 3500 states have internal predecessors, (11490), 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) [2021-02-16 17:21:32,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 11490 transitions. [2021-02-16 17:21:32,760 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 11490 transitions. Word has length 43 [2021-02-16 17:21:32,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:32,760 INFO L480 AbstractCegarLoop]: Abstraction has 3501 states and 11490 transitions. [2021-02-16 17:21:32,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-02-16 17:21:32,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 11490 transitions. [2021-02-16 17:21:32,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-16 17:21:32,771 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:32,771 INFO L505 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] [2021-02-16 17:21:32,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-16 17:21:32,771 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:32,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:32,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1925749115, now seen corresponding path program 1 times [2021-02-16 17:21:32,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:32,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283954319] [2021-02-16 17:21:32,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:32,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:32,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:32,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:32,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:32,881 WARN L141 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-02-16 17:21:32,883 WARN L147 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size 13 [2021-02-16 17:21:32,894 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:21:32,896 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:21:32,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:32,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:32,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:32,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:32,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:32,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:32,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283954319] [2021-02-16 17:21:32,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:32,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:21:32,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871824598] [2021-02-16 17:21:32,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:21:32,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:32,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:21:32,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:21:32,949 INFO L87 Difference]: Start difference. First operand 3501 states and 11490 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-02-16 17:21:33,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:33,120 INFO L93 Difference]: Finished difference Result 5325 states and 17262 transitions. [2021-02-16 17:21:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-16 17:21:33,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2021-02-16 17:21:33,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:33,136 INFO L225 Difference]: With dead ends: 5325 [2021-02-16 17:21:33,136 INFO L226 Difference]: Without dead ends: 3741 [2021-02-16 17:21:33,137 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-02-16 17:21:33,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3741 states. [2021-02-16 17:21:33,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3741 to 2901. [2021-02-16 17:21:33,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2901 states, 2900 states have (on average 3.249655172413793) internal successors, (9424), 2900 states have internal predecessors, (9424), 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) [2021-02-16 17:21:33,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2901 states to 2901 states and 9424 transitions. [2021-02-16 17:21:33,262 INFO L78 Accepts]: Start accepts. Automaton has 2901 states and 9424 transitions. Word has length 44 [2021-02-16 17:21:33,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:33,265 INFO L480 AbstractCegarLoop]: Abstraction has 2901 states and 9424 transitions. [2021-02-16 17:21:33,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-02-16 17:21:33,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2901 states and 9424 transitions. [2021-02-16 17:21:33,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-02-16 17:21:33,273 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:33,274 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:21:33,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-16 17:21:33,274 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:33,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:33,275 INFO L82 PathProgramCache]: Analyzing trace with hash -914503748, now seen corresponding path program 1 times [2021-02-16 17:21:33,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:33,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193786321] [2021-02-16 17:21:33,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:33,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:33,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:33,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:33,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:33,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:33,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:33,389 WARN L141 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-02-16 17:21:33,390 WARN L147 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size 13 [2021-02-16 17:21:33,404 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:21:33,407 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:21:33,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:33,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:33,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:33,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:33,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:33,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:33,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:33,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193786321] [2021-02-16 17:21:33,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:33,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-16 17:21:33,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904334603] [2021-02-16 17:21:33,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-16 17:21:33,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:33,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-16 17:21:33,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:21:33,469 INFO L87 Difference]: Start difference. First operand 2901 states and 9424 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:21:33,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:33,621 INFO L93 Difference]: Finished difference Result 5121 states and 16485 transitions. [2021-02-16 17:21:33,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-16 17:21:33,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-02-16 17:21:33,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:33,634 INFO L225 Difference]: With dead ends: 5121 [2021-02-16 17:21:33,635 INFO L226 Difference]: Without dead ends: 3091 [2021-02-16 17:21:33,635 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-02-16 17:21:33,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3091 states. [2021-02-16 17:21:33,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3091 to 2611. [2021-02-16 17:21:33,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2610 states have (on average 3.2160919540229886) internal successors, (8394), 2610 states have internal predecessors, (8394), 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) [2021-02-16 17:21:33,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 8394 transitions. [2021-02-16 17:21:33,741 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 8394 transitions. Word has length 45 [2021-02-16 17:21:33,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:33,741 INFO L480 AbstractCegarLoop]: Abstraction has 2611 states and 8394 transitions. [2021-02-16 17:21:33,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:21:33,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 8394 transitions. [2021-02-16 17:21:33,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-02-16 17:21:33,748 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:33,748 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:21:33,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-16 17:21:33,749 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:33,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:33,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1480040420, now seen corresponding path program 2 times [2021-02-16 17:21:33,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:33,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873020914] [2021-02-16 17:21:33,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:33,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:33,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:33,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:33,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:33,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:33,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:33,827 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:21:33,829 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:21:33,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:33,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:33,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:33,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:33,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:33,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:33,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873020914] [2021-02-16 17:21:33,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:33,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:21:33,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127556708] [2021-02-16 17:21:33,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:21:33,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:33,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:21:33,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:21:33,884 INFO L87 Difference]: Start difference. First operand 2611 states and 8394 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:21:34,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:34,051 INFO L93 Difference]: Finished difference Result 3003 states and 9508 transitions. [2021-02-16 17:21:34,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-16 17:21:34,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-02-16 17:21:34,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:34,057 INFO L225 Difference]: With dead ends: 3003 [2021-02-16 17:21:34,057 INFO L226 Difference]: Without dead ends: 1083 [2021-02-16 17:21:34,057 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-02-16 17:21:34,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2021-02-16 17:21:34,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1083. [2021-02-16 17:21:34,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1082 states have (on average 3.032347504621072) internal successors, (3281), 1082 states have internal predecessors, (3281), 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) [2021-02-16 17:21:34,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 3281 transitions. [2021-02-16 17:21:34,093 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 3281 transitions. Word has length 45 [2021-02-16 17:21:34,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:34,094 INFO L480 AbstractCegarLoop]: Abstraction has 1083 states and 3281 transitions. [2021-02-16 17:21:34,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:21:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 3281 transitions. [2021-02-16 17:21:34,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-16 17:21:34,096 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:34,096 INFO L505 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] [2021-02-16 17:21:34,097 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-16 17:21:34,097 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:34,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:34,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1324106926, now seen corresponding path program 1 times [2021-02-16 17:21:34,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:34,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961107037] [2021-02-16 17:21:34,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:34,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:34,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:34,149 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:21:34,150 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:21:34,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:21:34,179 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:21:34,180 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:21:34,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:34,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:34,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961107037] [2021-02-16 17:21:34,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:34,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-16 17:21:34,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297979061] [2021-02-16 17:21:34,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-16 17:21:34,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:34,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-16 17:21:34,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-16 17:21:34,199 INFO L87 Difference]: Start difference. First operand 1083 states and 3281 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-02-16 17:21:34,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:34,320 INFO L93 Difference]: Finished difference Result 1288 states and 3844 transitions. [2021-02-16 17:21:34,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-16 17:21:34,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-02-16 17:21:34,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:34,324 INFO L225 Difference]: With dead ends: 1288 [2021-02-16 17:21:34,324 INFO L226 Difference]: Without dead ends: 968 [2021-02-16 17:21:34,324 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-02-16 17:21:34,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2021-02-16 17:21:34,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2021-02-16 17:21:34,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 967 states have (on average 2.9896587383660806) internal successors, (2891), 967 states have internal predecessors, (2891), 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) [2021-02-16 17:21:34,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 2891 transitions. [2021-02-16 17:21:34,355 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 2891 transitions. Word has length 46 [2021-02-16 17:21:34,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:34,355 INFO L480 AbstractCegarLoop]: Abstraction has 968 states and 2891 transitions. [2021-02-16 17:21:34,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-02-16 17:21:34,356 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 2891 transitions. [2021-02-16 17:21:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-16 17:21:34,358 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:34,358 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:21:34,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-16 17:21:34,358 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:34,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:34,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1708826962, now seen corresponding path program 1 times [2021-02-16 17:21:34,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:34,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767479649] [2021-02-16 17:21:34,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:34,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:34,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:34,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:34,413 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:21:34,414 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:21:34,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:21:34,443 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:21:34,444 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:21:34,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:34,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:34,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767479649] [2021-02-16 17:21:34,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:34,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:21:34,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170863460] [2021-02-16 17:21:34,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:21:34,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:34,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:21:34,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:21:34,462 INFO L87 Difference]: Start difference. First operand 968 states and 2891 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:21:34,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:34,618 INFO L93 Difference]: Finished difference Result 860 states and 2471 transitions. [2021-02-16 17:21:34,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-16 17:21:34,619 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-02-16 17:21:34,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:34,621 INFO L225 Difference]: With dead ends: 860 [2021-02-16 17:21:34,621 INFO L226 Difference]: Without dead ends: 608 [2021-02-16 17:21:34,622 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-02-16 17:21:34,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2021-02-16 17:21:34,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2021-02-16 17:21:34,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 607 states have (on average 2.8105436573311366) internal successors, (1706), 607 states have internal predecessors, (1706), 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) [2021-02-16 17:21:34,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 1706 transitions. [2021-02-16 17:21:34,641 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 1706 transitions. Word has length 47 [2021-02-16 17:21:34,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:34,641 INFO L480 AbstractCegarLoop]: Abstraction has 608 states and 1706 transitions. [2021-02-16 17:21:34,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:21:34,642 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 1706 transitions. [2021-02-16 17:21:34,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-02-16 17:21:34,643 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:34,643 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:21:34,643 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-16 17:21:34,644 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:34,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:34,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1334106945, now seen corresponding path program 1 times [2021-02-16 17:21:34,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:34,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915807633] [2021-02-16 17:21:34,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:34,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:34,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:34,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:34,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:34,703 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:21:34,704 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:21:34,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:21:34,734 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:21:34,735 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:21:34,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:34,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:34,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915807633] [2021-02-16 17:21:34,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:34,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-16 17:21:34,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964619166] [2021-02-16 17:21:34,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-16 17:21:34,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:34,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-16 17:21:34,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:21:34,754 INFO L87 Difference]: Start difference. First operand 608 states and 1706 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:21:34,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:34,854 INFO L93 Difference]: Finished difference Result 311 states and 815 transitions. [2021-02-16 17:21:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-16 17:21:34,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-02-16 17:21:34,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:34,854 INFO L225 Difference]: With dead ends: 311 [2021-02-16 17:21:34,855 INFO L226 Difference]: Without dead ends: 0 [2021-02-16 17:21:34,855 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-16 17:21:34,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-16 17:21:34,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-16 17:21:34,856 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) [2021-02-16 17:21:34,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-16 17:21:34,856 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2021-02-16 17:21:34,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:34,856 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-16 17:21:34,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:21:34,857 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-16 17:21:34,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-16 17:21:34,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-16 17:21:34,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 05:21:34 BasicIcfg [2021-02-16 17:21:34,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-16 17:21:34,863 INFO L168 Benchmark]: Toolchain (without parser) took 8185.68 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 784.3 MB). Free memory was 275.6 MB in the beginning and 536.9 MB in the end (delta: -261.3 MB). Peak memory consumption was 525.8 MB. Max. memory is 16.0 GB. [2021-02-16 17:21:34,865 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 302.0 MB. Free memory was 271.4 MB in the beginning and 271.2 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 17:21:34,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.26 ms. Allocated memory is still 302.0 MB. Free memory was 274.5 MB in the beginning and 272.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-02-16 17:21:34,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.18 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 271.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 17:21:34,867 INFO L168 Benchmark]: Boogie Preprocessor took 27.36 ms. Allocated memory is still 302.0 MB. Free memory was 271.2 MB in the beginning and 269.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-16 17:21:34,873 INFO L168 Benchmark]: RCFGBuilder took 483.97 ms. Allocated memory is still 302.0 MB. Free memory was 269.7 MB in the beginning and 247.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-02-16 17:21:34,880 INFO L168 Benchmark]: TraceAbstraction took 6934.32 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 784.3 MB). Free memory was 247.2 MB in the beginning and 536.9 MB in the end (delta: -289.7 MB). Peak memory consumption was 496.6 MB. Max. memory is 16.0 GB. [2021-02-16 17:21:34,883 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 302.0 MB. Free memory was 271.4 MB in the beginning and 271.2 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 673.26 ms. Allocated memory is still 302.0 MB. Free memory was 274.5 MB in the beginning and 272.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.18 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 271.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.36 ms. Allocated memory is still 302.0 MB. Free memory was 271.2 MB in the beginning and 269.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 483.97 ms. Allocated memory is still 302.0 MB. Free memory was 269.7 MB in the beginning and 247.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6934.32 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 784.3 MB). Free memory was 247.2 MB in the beginning and 536.9 MB in the end (delta: -289.7 MB). Peak memory consumption was 496.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 940 SDtfs, 1364 SDslu, 3146 SDs, 0 SdLazy, 384 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7593occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 4312 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 439 NumberOfCodeBlocks, 439 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 429 ConstructedInterpolants, 0 QuantifiedInterpolants, 71301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...