/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:10:07,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:10:07,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:10:07,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:10:07,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:10:07,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:10:07,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:10:07,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:10:07,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:10:07,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:10:07,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:10:07,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:10:07,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:10:07,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:10:07,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:10:07,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:10:07,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:10:07,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:10:07,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:10:07,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:10:07,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:10:07,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:10:07,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:10:07,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:10:07,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:10:07,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:10:07,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:10:07,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:10:07,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:10:07,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:10:07,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:10:07,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:10:07,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:10:07,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:10:07,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:10:07,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:10:07,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:10:07,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:10:07,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:10:07,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:10:07,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:10:07,280 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 19:10:07,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:10:07,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:10:07,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:10:07,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:10:07,326 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:10:07,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:10:07,327 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:10:07,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:10:07,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:10:07,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:10:07,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:10:07,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:10:07,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:10:07,328 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:10:07,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:10:07,329 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:10:07,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:10:07,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:10:07,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:10:07,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:10:07,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:10:07,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:10:07,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:10:07,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:10:07,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:10:07,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:10:07,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:10:07,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:10:07,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:10:07,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 19:10:07,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:10:07,685 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:10:07,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:10:07,692 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:10:07,692 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:10:07,693 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-12 19:10:07,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fcb0e11bd/47764d4c7dfa45009c21bd8ef56bbe8c/FLAGa865f46d0 [2020-10-12 19:10:08,329 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:10:08,329 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-12 19:10:08,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fcb0e11bd/47764d4c7dfa45009c21bd8ef56bbe8c/FLAGa865f46d0 [2020-10-12 19:10:08,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fcb0e11bd/47764d4c7dfa45009c21bd8ef56bbe8c [2020-10-12 19:10:08,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:10:08,610 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:10:08,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:10:08,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:10:08,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:10:08,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:10:08" (1/1) ... [2020-10-12 19:10:08,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625d319a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:10:08, skipping insertion in model container [2020-10-12 19:10:08,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:10:08" (1/1) ... [2020-10-12 19:10:08,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:10:08,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:10:09,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:10:09,213 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:10:09,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:10:09,888 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:10:09,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:10:09 WrapperNode [2020-10-12 19:10:09,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:10:09,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:10:09,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:10:09,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:10:09,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:10:09" (1/1) ... [2020-10-12 19:10:09,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:10:09" (1/1) ... [2020-10-12 19:10:09,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:10:09" (1/1) ... [2020-10-12 19:10:09,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:10:09" (1/1) ... [2020-10-12 19:10:09,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:10:09" (1/1) ... [2020-10-12 19:10:09,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:10:09" (1/1) ... [2020-10-12 19:10:09,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:10:09" (1/1) ... [2020-10-12 19:10:09,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:10:09,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:10:09,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:10:09,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:10:09,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:10:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:10:10,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:10:10,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:10:10,076 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:10:10,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:10:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:10:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:10:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:10:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:10:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:10:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:10:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:10:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:10:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:10:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:10:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:10:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:10:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:10:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:10:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:10:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:10:11,716 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:10:11,717 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:10:11,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:10:11 BoogieIcfgContainer [2020-10-12 19:10:11,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:10:11,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:10:11,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:10:11,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:10:11,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:10:08" (1/3) ... [2020-10-12 19:10:11,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e35e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:10:11, skipping insertion in model container [2020-10-12 19:10:11,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:10:09" (2/3) ... [2020-10-12 19:10:11,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e35e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:10:11, skipping insertion in model container [2020-10-12 19:10:11,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:10:11" (3/3) ... [2020-10-12 19:10:11,733 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-12 19:10:11,744 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:10:11,752 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-12 19:10:11,767 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-12 19:10:11,796 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:10:11,796 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:10:11,796 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:10:11,796 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:10:11,796 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:10:11,797 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:10:11,797 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:10:11,797 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:10:11,823 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states. [2020-10-12 19:10:11,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-12 19:10:11,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:10:11,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:10:11,843 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:10:11,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:10:11,849 INFO L82 PathProgramCache]: Analyzing trace with hash -561107897, now seen corresponding path program 1 times [2020-10-12 19:10:11,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:10:11,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852182222] [2020-10-12 19:10:11,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:10:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:10:12,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:12,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:13,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:13,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:13,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:13,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:13,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:13,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:13,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:15,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:15,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:15,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:16,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:17,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:10:17,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-12 19:10:17,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:10:17,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 19:10:17,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:10:17,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:10:17,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:10:17,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 19:10:17,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:10:18,103 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:10:18,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:10:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:10:18,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:18,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:10:18,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:10:18,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:10:18,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 19:10:18,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:10:18,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:10:18,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:10:18,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:10:18,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:10:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:10:18,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852182222] [2020-10-12 19:10:18,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:10:18,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:10:18,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986282381] [2020-10-12 19:10:18,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:10:18,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:10:18,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:10:18,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:10:18,252 INFO L87 Difference]: Start difference. First operand 382 states. Second operand 5 states. [2020-10-12 19:10:22,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:10:22,200 INFO L93 Difference]: Finished difference Result 1088 states and 1957 transitions. [2020-10-12 19:10:22,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 19:10:22,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-12 19:10:22,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:10:22,238 INFO L225 Difference]: With dead ends: 1088 [2020-10-12 19:10:22,239 INFO L226 Difference]: Without dead ends: 721 [2020-10-12 19:10:22,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:10:22,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-10-12 19:10:22,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 696. [2020-10-12 19:10:22,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2020-10-12 19:10:22,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 993 transitions. [2020-10-12 19:10:22,388 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 993 transitions. Word has length 143 [2020-10-12 19:10:22,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:10:22,389 INFO L479 AbstractCegarLoop]: Abstraction has 696 states and 993 transitions. [2020-10-12 19:10:22,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:10:22,389 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 993 transitions. [2020-10-12 19:10:22,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-12 19:10:22,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:10:22,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:10:22,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:10:22,400 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:10:22,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:10:22,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1322040853, now seen corresponding path program 1 times [2020-10-12 19:10:22,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:10:22,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65213409] [2020-10-12 19:10:22,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:10:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:10:22,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:22,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:22,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:22,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:22,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:23,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:23,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:23,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:23,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:24,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:25,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:25,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:25,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:27,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:10:27,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 19:10:27,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:10:27,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 19:10:27,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:10:27,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:10:27,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:10:27,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 19:10:27,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 19:10:27,821 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:10:27,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:10:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:10:27,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:27,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:10:27,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:10:27,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:10:27,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:10:27,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:10:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:10:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:10:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:10:27,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:10:27,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:10:27,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65213409] [2020-10-12 19:10:27,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:10:27,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:10:27,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323059416] [2020-10-12 19:10:27,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:10:27,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:10:27,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:10:27,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:10:27,968 INFO L87 Difference]: Start difference. First operand 696 states and 993 transitions. Second operand 5 states. [2020-10-12 19:10:31,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:10:31,128 INFO L93 Difference]: Finished difference Result 2031 states and 2890 transitions. [2020-10-12 19:10:31,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:10:31,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2020-10-12 19:10:31,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:10:31,138 INFO L225 Difference]: With dead ends: 2031 [2020-10-12 19:10:31,138 INFO L226 Difference]: Without dead ends: 1346 [2020-10-12 19:10:31,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:10:31,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2020-10-12 19:10:31,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1324. [2020-10-12 19:10:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1324 states. [2020-10-12 19:10:31,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1872 transitions. [2020-10-12 19:10:31,224 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1872 transitions. Word has length 144 [2020-10-12 19:10:31,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:10:31,227 INFO L479 AbstractCegarLoop]: Abstraction has 1324 states and 1872 transitions. [2020-10-12 19:10:31,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:10:31,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1872 transitions. [2020-10-12 19:10:31,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-12 19:10:31,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:10:31,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:10:31,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:10:31,235 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:10:31,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:10:31,236 INFO L82 PathProgramCache]: Analyzing trace with hash -821121980, now seen corresponding path program 1 times [2020-10-12 19:10:31,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:10:31,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932337587] [2020-10-12 19:10:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:10:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:10:31,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:31,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:31,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:31,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:31,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:31,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:31,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:32,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:32,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:32,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:33,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:35,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:35,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:36,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:36,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:10:36,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 19:10:36,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:10:36,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 19:10:36,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:10:36,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:10:36,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:10:36,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 19:10:36,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:10:36,773 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:10:36,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:10:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:10:36,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:36,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:10:36,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:10:36,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:10:36,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:10:36,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:10:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:10:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:10:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:10:36,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:10:36,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:10:36,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932337587] [2020-10-12 19:10:36,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:10:36,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:10:36,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763269155] [2020-10-12 19:10:36,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:10:36,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:10:36,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:10:36,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:10:36,869 INFO L87 Difference]: Start difference. First operand 1324 states and 1872 transitions. Second operand 5 states. [2020-10-12 19:10:40,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:10:40,326 INFO L93 Difference]: Finished difference Result 3822 states and 5382 transitions. [2020-10-12 19:10:40,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:10:40,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-10-12 19:10:40,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:10:40,341 INFO L225 Difference]: With dead ends: 3822 [2020-10-12 19:10:40,341 INFO L226 Difference]: Without dead ends: 2555 [2020-10-12 19:10:40,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:10:40,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2020-10-12 19:10:40,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2528. [2020-10-12 19:10:40,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2528 states. [2020-10-12 19:10:40,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 3544 transitions. [2020-10-12 19:10:40,480 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 3544 transitions. Word has length 145 [2020-10-12 19:10:40,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:10:40,483 INFO L479 AbstractCegarLoop]: Abstraction has 2528 states and 3544 transitions. [2020-10-12 19:10:40,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:10:40,483 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 3544 transitions. [2020-10-12 19:10:40,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-12 19:10:40,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:10:40,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:10:40,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:10:40,489 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:10:40,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:10:40,491 INFO L82 PathProgramCache]: Analyzing trace with hash -2104685834, now seen corresponding path program 1 times [2020-10-12 19:10:40,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:10:40,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118184978] [2020-10-12 19:10:40,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:10:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:10:40,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:40,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:40,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:40,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:40,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:40,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:40,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:41,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:42,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:42,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:45,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:45,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:45,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:45,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:45,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:10:45,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-12 19:10:45,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:10:45,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-12 19:10:45,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:10:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:10:45,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:10:45,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 19:10:45,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:10:46,019 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:10:46,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:10:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:10:46,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:46,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:10:46,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:10:46,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:10:46,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:10:46,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:10:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:10:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:10:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:10:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:10:46,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:10:46,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118184978] [2020-10-12 19:10:46,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:10:46,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:10:46,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976466095] [2020-10-12 19:10:46,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:10:46,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:10:46,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:10:46,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:10:46,171 INFO L87 Difference]: Start difference. First operand 2528 states and 3544 transitions. Second operand 5 states. [2020-10-12 19:10:50,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:10:50,062 INFO L93 Difference]: Finished difference Result 6903 states and 9721 transitions. [2020-10-12 19:10:50,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:10:50,063 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-10-12 19:10:50,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:10:50,086 INFO L225 Difference]: With dead ends: 6903 [2020-10-12 19:10:50,086 INFO L226 Difference]: Without dead ends: 4880 [2020-10-12 19:10:50,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:10:50,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4880 states. [2020-10-12 19:10:50,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4880 to 4860. [2020-10-12 19:10:50,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4860 states. [2020-10-12 19:10:50,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4860 states to 4860 states and 6725 transitions. [2020-10-12 19:10:50,356 INFO L78 Accepts]: Start accepts. Automaton has 4860 states and 6725 transitions. Word has length 146 [2020-10-12 19:10:50,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:10:50,357 INFO L479 AbstractCegarLoop]: Abstraction has 4860 states and 6725 transitions. [2020-10-12 19:10:50,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:10:50,357 INFO L276 IsEmpty]: Start isEmpty. Operand 4860 states and 6725 transitions. [2020-10-12 19:10:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-12 19:10:50,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:10:50,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:10:50,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:10:50,366 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:10:50,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:10:50,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1601804859, now seen corresponding path program 1 times [2020-10-12 19:10:50,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:10:50,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592145257] [2020-10-12 19:10:50,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:10:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:10:50,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:50,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:50,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:50,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:50,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:53,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:53,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:53,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:55,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:10:55,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-12 19:10:55,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:10:55,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:10:55,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:10:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:10:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:10:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 19:10:55,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:10:55,709 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:10:55,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:10:55,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:10:55,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:55,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:10:55,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:10:55,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:10:55,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 19:10:55,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:10:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:10:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:10:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:10:55,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:10:55,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:10:55,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592145257] [2020-10-12 19:10:55,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:10:55,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:10:55,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107041909] [2020-10-12 19:10:55,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:10:55,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:10:55,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:10:55,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:10:55,786 INFO L87 Difference]: Start difference. First operand 4860 states and 6725 transitions. Second operand 5 states. [2020-10-12 19:10:57,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:10:57,525 INFO L93 Difference]: Finished difference Result 8370 states and 11600 transitions. [2020-10-12 19:10:57,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:10:57,526 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-10-12 19:10:57,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:10:57,542 INFO L225 Difference]: With dead ends: 8370 [2020-10-12 19:10:57,542 INFO L226 Difference]: Without dead ends: 3726 [2020-10-12 19:10:57,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:10:57,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2020-10-12 19:10:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3726. [2020-10-12 19:10:57,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3726 states. [2020-10-12 19:10:57,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 5136 transitions. [2020-10-12 19:10:57,738 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 5136 transitions. Word has length 147 [2020-10-12 19:10:57,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:10:57,739 INFO L479 AbstractCegarLoop]: Abstraction has 3726 states and 5136 transitions. [2020-10-12 19:10:57,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:10:57,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 5136 transitions. [2020-10-12 19:10:57,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-12 19:10:57,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:10:57,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:10:57,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:10:57,746 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:10:57,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:10:57,747 INFO L82 PathProgramCache]: Analyzing trace with hash 371370807, now seen corresponding path program 1 times [2020-10-12 19:10:57,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:10:57,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319406498] [2020-10-12 19:10:57,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:10:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:10:57,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:57,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:57,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:57,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:57,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:58,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:58,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:58,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:10:58,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:00,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:00,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:00,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:02,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:02,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 19:11:02,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:11:02,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 19:11:02,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:02,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:11:02,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:11:02,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 19:11:02,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:11:03,191 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:11:03,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:11:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:03,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:03,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:03,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:11:03,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:11:03,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 19:11:03,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:03,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:11:03,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:11:03,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:11:03,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:11:03,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:11:03,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319406498] [2020-10-12 19:11:03,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:11:03,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:11:03,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130786397] [2020-10-12 19:11:03,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:11:03,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:11:03,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:11:03,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:11:03,294 INFO L87 Difference]: Start difference. First operand 3726 states and 5136 transitions. Second operand 11 states. [2020-10-12 19:11:03,569 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:11:07,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:11:07,792 INFO L93 Difference]: Finished difference Result 14348 states and 21226 transitions. [2020-10-12 19:11:07,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 19:11:07,798 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 154 [2020-10-12 19:11:07,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:11:07,840 INFO L225 Difference]: With dead ends: 14348 [2020-10-12 19:11:07,840 INFO L226 Difference]: Without dead ends: 11287 [2020-10-12 19:11:07,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2020-10-12 19:11:07,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11287 states. [2020-10-12 19:11:08,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11287 to 4999. [2020-10-12 19:11:08,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4999 states. [2020-10-12 19:11:08,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4999 states to 4999 states and 6963 transitions. [2020-10-12 19:11:08,235 INFO L78 Accepts]: Start accepts. Automaton has 4999 states and 6963 transitions. Word has length 154 [2020-10-12 19:11:08,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:11:08,235 INFO L479 AbstractCegarLoop]: Abstraction has 4999 states and 6963 transitions. [2020-10-12 19:11:08,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:11:08,236 INFO L276 IsEmpty]: Start isEmpty. Operand 4999 states and 6963 transitions. [2020-10-12 19:11:08,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-12 19:11:08,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:11:08,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:11:08,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:11:08,244 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:11:08,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:11:08,245 INFO L82 PathProgramCache]: Analyzing trace with hash -512381260, now seen corresponding path program 1 times [2020-10-12 19:11:08,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:11:08,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963592980] [2020-10-12 19:11:08,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:11:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:08,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:08,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:08,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:08,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:08,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:08,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:08,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:08,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:09,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:11,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:11,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:13,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:13,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 19:11:13,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 19:11:13,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 19:11:13,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:13,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:11:13,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:11:13,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 19:11:13,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 19:11:13,568 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:11:13,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:11:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:13,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:13,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:13,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:11:13,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:11:13,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:11:13,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:11:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:11:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:11:13,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:11:13,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:11:13,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963592980] [2020-10-12 19:11:13,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:11:13,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:11:13,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707359581] [2020-10-12 19:11:13,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 19:11:13,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:11:13,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 19:11:13,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:11:13,691 INFO L87 Difference]: Start difference. First operand 4999 states and 6963 transitions. Second operand 6 states. [2020-10-12 19:11:13,949 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:11:15,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:11:15,681 INFO L93 Difference]: Finished difference Result 9043 states and 12774 transitions. [2020-10-12 19:11:15,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 19:11:15,681 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2020-10-12 19:11:15,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:11:15,699 INFO L225 Difference]: With dead ends: 9043 [2020-10-12 19:11:15,699 INFO L226 Difference]: Without dead ends: 4587 [2020-10-12 19:11:15,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 19:11:15,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4587 states. [2020-10-12 19:11:15,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4587 to 4587. [2020-10-12 19:11:15,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4587 states. [2020-10-12 19:11:15,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4587 states to 4587 states and 6379 transitions. [2020-10-12 19:11:15,978 INFO L78 Accepts]: Start accepts. Automaton has 4587 states and 6379 transitions. Word has length 154 [2020-10-12 19:11:15,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:11:15,978 INFO L479 AbstractCegarLoop]: Abstraction has 4587 states and 6379 transitions. [2020-10-12 19:11:15,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 19:11:15,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4587 states and 6379 transitions. [2020-10-12 19:11:15,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-12 19:11:15,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:11:15,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:11:15,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:11:15,985 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:11:15,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:11:15,985 INFO L82 PathProgramCache]: Analyzing trace with hash -100107465, now seen corresponding path program 1 times [2020-10-12 19:11:15,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:11:15,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983019478] [2020-10-12 19:11:15,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:11:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:16,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:16,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:16,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:16,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:16,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:16,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:16,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:16,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:17,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:20,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:21,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:21,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 19:11:21,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:11:21,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-12 19:11:21,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:11:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-12 19:11:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 19:11:21,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:11:21,318 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:11:21,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:11:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:21,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:21,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:21,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:11:21,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:11:21,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:11:21,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:21,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:11:21,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:11:21,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:11:21,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:11:21,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:11:21,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983019478] [2020-10-12 19:11:21,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:11:21,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:11:21,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883105157] [2020-10-12 19:11:21,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:11:21,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:11:21,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:11:21,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:11:21,356 INFO L87 Difference]: Start difference. First operand 4587 states and 6379 transitions. Second operand 5 states. [2020-10-12 19:11:23,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:11:23,012 INFO L93 Difference]: Finished difference Result 8349 states and 11581 transitions. [2020-10-12 19:11:23,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:11:23,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2020-10-12 19:11:23,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:11:23,022 INFO L225 Difference]: With dead ends: 8349 [2020-10-12 19:11:23,022 INFO L226 Difference]: Without dead ends: 3820 [2020-10-12 19:11:23,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:11:23,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3820 states. [2020-10-12 19:11:23,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3820 to 3814. [2020-10-12 19:11:23,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3814 states. [2020-10-12 19:11:23,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 5274 transitions. [2020-10-12 19:11:23,236 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 5274 transitions. Word has length 154 [2020-10-12 19:11:23,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:11:23,236 INFO L479 AbstractCegarLoop]: Abstraction has 3814 states and 5274 transitions. [2020-10-12 19:11:23,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:11:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 5274 transitions. [2020-10-12 19:11:23,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-12 19:11:23,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:11:23,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:11:23,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:11:23,241 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:11:23,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:11:23,242 INFO L82 PathProgramCache]: Analyzing trace with hash 901200785, now seen corresponding path program 1 times [2020-10-12 19:11:23,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:11:23,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755376133] [2020-10-12 19:11:23,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:11:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:23,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:23,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:23,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:23,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:23,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:23,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:23,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:23,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:23,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:23,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:23,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:24,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:25,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:25,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:25,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:25,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:25,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:28,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:28,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-12 19:11:28,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 19:11:28,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 19:11:28,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:11:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:11:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 19:11:28,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:11:28,543 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:11:28,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:11:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:28,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:28,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:28,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:11:28,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:11:28,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:11:28,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:11:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:11:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:11:28,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:11:28,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:11:28,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755376133] [2020-10-12 19:11:28,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:11:28,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:11:28,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797370789] [2020-10-12 19:11:28,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:11:28,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:11:28,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:11:28,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:11:28,612 INFO L87 Difference]: Start difference. First operand 3814 states and 5274 transitions. Second operand 5 states. [2020-10-12 19:11:31,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:11:31,447 INFO L93 Difference]: Finished difference Result 9782 states and 13600 transitions. [2020-10-12 19:11:31,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:11:31,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-12 19:11:31,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:11:31,460 INFO L225 Difference]: With dead ends: 9782 [2020-10-12 19:11:31,460 INFO L226 Difference]: Without dead ends: 6257 [2020-10-12 19:11:31,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:11:31,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6257 states. [2020-10-12 19:11:31,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6257 to 6227. [2020-10-12 19:11:31,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6227 states. [2020-10-12 19:11:31,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6227 states to 6227 states and 8545 transitions. [2020-10-12 19:11:31,991 INFO L78 Accepts]: Start accepts. Automaton has 6227 states and 8545 transitions. Word has length 155 [2020-10-12 19:11:31,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:11:31,992 INFO L479 AbstractCegarLoop]: Abstraction has 6227 states and 8545 transitions. [2020-10-12 19:11:31,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:11:31,992 INFO L276 IsEmpty]: Start isEmpty. Operand 6227 states and 8545 transitions. [2020-10-12 19:11:31,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-12 19:11:31,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:11:31,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:11:31,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 19:11:31,997 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:11:31,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:11:31,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1191262429, now seen corresponding path program 1 times [2020-10-12 19:11:31,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:11:31,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100448494] [2020-10-12 19:11:31,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:11:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:32,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:32,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:32,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:32,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:32,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:32,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:32,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:32,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:32,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:33,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:35,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:35,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:35,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:37,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:37,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 19:11:37,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:11:37,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 19:11:37,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:37,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:11:37,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 19:11:37,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 19:11:37,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:11:37,322 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:11:37,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:11:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:37,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:37,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:37,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:11:37,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:11:37,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:11:37,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:37,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:11:37,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:11:37,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:11:37,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:11:37,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:11:37,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100448494] [2020-10-12 19:11:37,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:11:37,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:11:37,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425693675] [2020-10-12 19:11:37,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:11:37,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:11:37,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:11:37,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:11:37,357 INFO L87 Difference]: Start difference. First operand 6227 states and 8545 transitions. Second operand 5 states. [2020-10-12 19:11:39,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:11:39,083 INFO L93 Difference]: Finished difference Result 11264 states and 15441 transitions. [2020-10-12 19:11:39,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:11:39,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-10-12 19:11:39,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:11:39,094 INFO L225 Difference]: With dead ends: 11264 [2020-10-12 19:11:39,095 INFO L226 Difference]: Without dead ends: 5166 [2020-10-12 19:11:39,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:11:39,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2020-10-12 19:11:39,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5160. [2020-10-12 19:11:39,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5160 states. [2020-10-12 19:11:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5160 states to 5160 states and 7060 transitions. [2020-10-12 19:11:39,534 INFO L78 Accepts]: Start accepts. Automaton has 5160 states and 7060 transitions. Word has length 162 [2020-10-12 19:11:39,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:11:39,534 INFO L479 AbstractCegarLoop]: Abstraction has 5160 states and 7060 transitions. [2020-10-12 19:11:39,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:11:39,534 INFO L276 IsEmpty]: Start isEmpty. Operand 5160 states and 7060 transitions. [2020-10-12 19:11:39,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-12 19:11:39,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:11:39,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:11:39,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 19:11:39,538 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:11:39,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:11:39,539 INFO L82 PathProgramCache]: Analyzing trace with hash 588528076, now seen corresponding path program 1 times [2020-10-12 19:11:39,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:11:39,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291665676] [2020-10-12 19:11:39,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:11:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:39,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:39,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:39,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:39,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:39,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:39,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:39,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:39,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:39,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:39,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:40,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:41,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:42,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:42,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:44,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:44,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 19:11:44,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:11:44,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 19:11:44,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:11:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:11:44,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 19:11:44,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:11:44,844 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:11:44,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:11:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:44,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:44,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:44,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:11:44,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:11:44,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:11:44,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:44,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:11:44,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:11:44,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:11:44,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:11:44,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:11:44,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291665676] [2020-10-12 19:11:44,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:11:44,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:11:44,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219939683] [2020-10-12 19:11:44,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 19:11:44,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:11:44,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 19:11:44,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:11:44,890 INFO L87 Difference]: Start difference. First operand 5160 states and 7060 transitions. Second operand 6 states. [2020-10-12 19:11:45,149 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-12 19:11:47,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:11:47,256 INFO L93 Difference]: Finished difference Result 13177 states and 18401 transitions. [2020-10-12 19:11:47,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 19:11:47,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2020-10-12 19:11:47,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:11:47,280 INFO L225 Difference]: With dead ends: 13177 [2020-10-12 19:11:47,281 INFO L226 Difference]: Without dead ends: 8748 [2020-10-12 19:11:47,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 19:11:47,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8748 states. [2020-10-12 19:11:47,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8742. [2020-10-12 19:11:47,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8742 states. [2020-10-12 19:11:47,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8742 states to 8742 states and 12068 transitions. [2020-10-12 19:11:47,993 INFO L78 Accepts]: Start accepts. Automaton has 8742 states and 12068 transitions. Word has length 164 [2020-10-12 19:11:47,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:11:47,993 INFO L479 AbstractCegarLoop]: Abstraction has 8742 states and 12068 transitions. [2020-10-12 19:11:47,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 19:11:47,993 INFO L276 IsEmpty]: Start isEmpty. Operand 8742 states and 12068 transitions. [2020-10-12 19:11:47,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-12 19:11:47,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:11:47,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:11:47,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 19:11:47,999 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:11:48,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:11:48,000 INFO L82 PathProgramCache]: Analyzing trace with hash 333544775, now seen corresponding path program 1 times [2020-10-12 19:11:48,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:11:48,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838343765] [2020-10-12 19:11:48,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:11:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:48,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:48,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:48,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:48,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:48,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:48,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:48,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:48,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:48,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:48,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:49,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:49,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:50,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:53,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:53,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 19:11:53,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:11:53,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-12 19:11:53,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:53,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:11:53,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-12 19:11:53,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 19:11:53,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:11:53,594 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:11:53,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:11:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:11:53,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:11:53,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:11:53,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:11:53,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:11:53,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:11:53,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:11:53,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:11:53,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:11:53,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:11:53,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:11:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:11:53,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838343765] [2020-10-12 19:11:53,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:11:53,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:11:53,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855876253] [2020-10-12 19:11:53,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:11:53,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:11:53,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:11:53,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:11:53,656 INFO L87 Difference]: Start difference. First operand 8742 states and 12068 transitions. Second operand 12 states. [2020-10-12 19:11:54,324 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 210 [2020-10-12 19:12:01,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:12:01,147 INFO L93 Difference]: Finished difference Result 28052 states and 40229 transitions. [2020-10-12 19:12:01,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 19:12:01,149 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 164 [2020-10-12 19:12:01,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:12:01,181 INFO L225 Difference]: With dead ends: 28052 [2020-10-12 19:12:01,181 INFO L226 Difference]: Without dead ends: 23613 [2020-10-12 19:12:01,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2020-10-12 19:12:01,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23613 states. [2020-10-12 19:12:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23613 to 9775. [2020-10-12 19:12:02,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9775 states. [2020-10-12 19:12:02,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9775 states to 9775 states and 13273 transitions. [2020-10-12 19:12:02,086 INFO L78 Accepts]: Start accepts. Automaton has 9775 states and 13273 transitions. Word has length 164 [2020-10-12 19:12:02,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:12:02,087 INFO L479 AbstractCegarLoop]: Abstraction has 9775 states and 13273 transitions. [2020-10-12 19:12:02,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:12:02,087 INFO L276 IsEmpty]: Start isEmpty. Operand 9775 states and 13273 transitions. [2020-10-12 19:12:02,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-12 19:12:02,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:12:02,096 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:12:02,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 19:12:02,096 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:12:02,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:12:02,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1681276811, now seen corresponding path program 1 times [2020-10-12 19:12:02,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:12:02,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314024834] [2020-10-12 19:12:02,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:12:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:12:02,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:02,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:02,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:02,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:02,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:02,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:02,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:02,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:02,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:02,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:03,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:03,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:05,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:05,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:05,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:06,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:06,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:07,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:12:07,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 19:12:07,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 19:12:07,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 19:12:07,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:12:07,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:12:07,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:12:07,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-12 19:12:07,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:12:07,651 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:12:07,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:12:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:12:07,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:07,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:12:07,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:12:07,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:12:07,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:12:07,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:12:07,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:12:07,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:12:07,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:12:07,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:12:07,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:12:07,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314024834] [2020-10-12 19:12:07,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:12:07,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:12:07,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895569337] [2020-10-12 19:12:07,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:12:07,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:12:07,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:12:07,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:12:07,727 INFO L87 Difference]: Start difference. First operand 9775 states and 13273 transitions. Second operand 11 states. [2020-10-12 19:12:07,999 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:12:16,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:12:16,994 INFO L93 Difference]: Finished difference Result 55516 states and 82500 transitions. [2020-10-12 19:12:16,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 19:12:16,994 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 164 [2020-10-12 19:12:16,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:12:17,061 INFO L225 Difference]: With dead ends: 55516 [2020-10-12 19:12:17,061 INFO L226 Difference]: Without dead ends: 51327 [2020-10-12 19:12:17,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2020-10-12 19:12:17,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51327 states. [2020-10-12 19:12:18,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51327 to 16584. [2020-10-12 19:12:18,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16584 states. [2020-10-12 19:12:18,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16584 states to 16584 states and 22875 transitions. [2020-10-12 19:12:18,849 INFO L78 Accepts]: Start accepts. Automaton has 16584 states and 22875 transitions. Word has length 164 [2020-10-12 19:12:18,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:12:18,849 INFO L479 AbstractCegarLoop]: Abstraction has 16584 states and 22875 transitions. [2020-10-12 19:12:18,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:12:18,849 INFO L276 IsEmpty]: Start isEmpty. Operand 16584 states and 22875 transitions. [2020-10-12 19:12:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-12 19:12:18,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:12:18,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:12:18,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 19:12:18,860 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:12:18,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:12:18,860 INFO L82 PathProgramCache]: Analyzing trace with hash 815578072, now seen corresponding path program 1 times [2020-10-12 19:12:18,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:12:18,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938736549] [2020-10-12 19:12:18,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:12:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:12:18,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:18,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:18,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:19,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:19,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:19,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:19,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:19,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:19,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:19,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:20,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:20,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:22,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:22,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:22,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:22,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:23,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:23,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:12:23,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 19:12:23,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 19:12:23,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-12 19:12:23,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:12:23,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:12:23,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:12:23,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-12 19:12:23,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:12:24,394 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:12:24,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:12:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:12:24,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:24,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:12:24,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:12:24,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:12:24,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:12:24,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:12:24,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:12:24,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:12:24,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:12:24,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:12:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:12:24,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938736549] [2020-10-12 19:12:24,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:12:24,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:12:24,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893690128] [2020-10-12 19:12:24,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:12:24,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:12:24,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:12:24,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:12:24,482 INFO L87 Difference]: Start difference. First operand 16584 states and 22875 transitions. Second operand 11 states. [2020-10-12 19:12:24,775 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-12 19:12:38,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:12:38,058 INFO L93 Difference]: Finished difference Result 72704 states and 105659 transitions. [2020-10-12 19:12:38,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 19:12:38,059 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 164 [2020-10-12 19:12:38,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:12:38,133 INFO L225 Difference]: With dead ends: 72704 [2020-10-12 19:12:38,133 INFO L226 Difference]: Without dead ends: 65394 [2020-10-12 19:12:38,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=192, Invalid=738, Unknown=0, NotChecked=0, Total=930 [2020-10-12 19:12:38,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65394 states. [2020-10-12 19:12:41,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65394 to 20956. [2020-10-12 19:12:41,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20956 states. [2020-10-12 19:12:41,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20956 states to 20956 states and 28183 transitions. [2020-10-12 19:12:41,863 INFO L78 Accepts]: Start accepts. Automaton has 20956 states and 28183 transitions. Word has length 164 [2020-10-12 19:12:41,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:12:41,864 INFO L479 AbstractCegarLoop]: Abstraction has 20956 states and 28183 transitions. [2020-10-12 19:12:41,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:12:41,864 INFO L276 IsEmpty]: Start isEmpty. Operand 20956 states and 28183 transitions. [2020-10-12 19:12:41,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-12 19:12:41,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:12:41,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:12:41,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 19:12:41,878 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:12:41,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:12:41,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1529700226, now seen corresponding path program 1 times [2020-10-12 19:12:41,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:12:41,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147050486] [2020-10-12 19:12:41,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:12:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:12:41,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:41,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:41,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:42,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:42,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:42,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:42,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:42,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:42,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:42,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:43,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:43,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:45,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:45,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:45,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:45,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:46,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:12:46,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 19:12:46,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 19:12:46,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 19:12:46,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:12:46,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:12:46,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:12:46,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 19:12:46,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:12:47,175 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:12:47,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:12:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:12:47,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:47,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:12:47,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:12:47,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:12:47,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:12:47,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:12:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:12:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:12:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:12:47,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:12:47,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:12:47,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147050486] [2020-10-12 19:12:47,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:12:47,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:12:47,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191087496] [2020-10-12 19:12:47,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:12:47,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:12:47,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:12:47,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:12:47,228 INFO L87 Difference]: Start difference. First operand 20956 states and 28183 transitions. Second operand 5 states. [2020-10-12 19:12:47,622 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-12 19:12:52,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:12:52,793 INFO L93 Difference]: Finished difference Result 39450 states and 53048 transitions. [2020-10-12 19:12:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 19:12:52,794 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-10-12 19:12:52,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:12:52,815 INFO L225 Difference]: With dead ends: 39450 [2020-10-12 19:12:52,815 INFO L226 Difference]: Without dead ends: 20946 [2020-10-12 19:12:52,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:12:52,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20946 states. [2020-10-12 19:12:55,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20946 to 20674. [2020-10-12 19:12:55,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20674 states. [2020-10-12 19:12:55,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20674 states to 20674 states and 27781 transitions. [2020-10-12 19:12:55,237 INFO L78 Accepts]: Start accepts. Automaton has 20674 states and 27781 transitions. Word has length 164 [2020-10-12 19:12:55,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:12:55,237 INFO L479 AbstractCegarLoop]: Abstraction has 20674 states and 27781 transitions. [2020-10-12 19:12:55,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:12:55,237 INFO L276 IsEmpty]: Start isEmpty. Operand 20674 states and 27781 transitions. [2020-10-12 19:12:55,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-12 19:12:55,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:12:55,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:12:55,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 19:12:55,253 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:12:55,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:12:55,253 INFO L82 PathProgramCache]: Analyzing trace with hash 900567919, now seen corresponding path program 1 times [2020-10-12 19:12:55,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:12:55,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386210701] [2020-10-12 19:12:55,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:12:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:12:55,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:55,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:55,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:55,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:55,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:55,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:55,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:56,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:56,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:56,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:56,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:56,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:56,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:56,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:12:56,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 19:12:56,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:12:56,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1636 [2020-10-12 19:12:56,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:12:56,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:12:56,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:12:56,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-12 19:12:56,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:12:57,207 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:12:57,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:12:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:12:57,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:12:57,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:12:57,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:12:57,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:12:57,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:12:57,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:12:57,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:12:57,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:12:57,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:12:57,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:12:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:12:57,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386210701] [2020-10-12 19:12:57,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:12:57,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:12:57,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008813447] [2020-10-12 19:12:57,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:12:57,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:12:57,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:12:57,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:12:57,282 INFO L87 Difference]: Start difference. First operand 20674 states and 27781 transitions. Second operand 5 states. [2020-10-12 19:13:03,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:13:03,674 INFO L93 Difference]: Finished difference Result 50815 states and 68070 transitions. [2020-10-12 19:13:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:13:03,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2020-10-12 19:13:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:13:03,711 INFO L225 Difference]: With dead ends: 50815 [2020-10-12 19:13:03,711 INFO L226 Difference]: Without dead ends: 30333 [2020-10-12 19:13:03,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:13:03,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30333 states. [2020-10-12 19:13:07,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30333 to 30277. [2020-10-12 19:13:07,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30277 states. [2020-10-12 19:13:07,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30277 states to 30277 states and 39824 transitions. [2020-10-12 19:13:07,269 INFO L78 Accepts]: Start accepts. Automaton has 30277 states and 39824 transitions. Word has length 165 [2020-10-12 19:13:07,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:13:07,269 INFO L479 AbstractCegarLoop]: Abstraction has 30277 states and 39824 transitions. [2020-10-12 19:13:07,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:13:07,269 INFO L276 IsEmpty]: Start isEmpty. Operand 30277 states and 39824 transitions. [2020-10-12 19:13:07,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-12 19:13:07,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:13:07,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:13:07,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 19:13:07,467 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:13:07,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:13:07,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1817203394, now seen corresponding path program 1 times [2020-10-12 19:13:07,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:13:07,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402505180] [2020-10-12 19:13:07,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:13:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:13:07,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:13:07,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:13:07,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:13:07,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:13:07,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:13:07,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:13:08,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:13:10,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:13:11,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:13:11,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:13:12,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:13:12,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:13:12,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 19:13:12,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 19:13:12,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:13:12,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:13:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 19:13:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:13:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-12 19:13:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:13:13,349 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:13:13,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:13:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:13:13,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:13:13,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:13:13,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:13:13,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:13:13,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:13:13,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:13:13,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:13:13,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:13:13,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:13:13,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:13:13,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:13:13,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402505180] [2020-10-12 19:13:13,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:13:13,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 19:13:13,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044549360] [2020-10-12 19:13:13,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 19:13:13,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:13:13,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 19:13:13,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-10-12 19:13:13,472 INFO L87 Difference]: Start difference. First operand 30277 states and 39824 transitions. Second operand 16 states. [2020-10-12 19:13:13,795 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-12 19:13:15,035 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-10-12 19:13:15,449 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-10-12 19:13:16,195 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-10-12 19:13:16,374 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-10-12 19:13:16,658 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-10-12 19:13:16,843 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-10-12 19:13:18,944 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-10-12 19:13:19,131 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-10-12 19:13:20,143 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2020-10-12 19:13:21,144 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2020-10-12 19:13:21,684 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2020-10-12 19:13:22,393 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2020-10-12 19:13:22,534 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51