/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:30:36,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:30:36,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:30:36,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:30:36,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:30:36,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:30:36,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:30:36,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:30:36,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:30:36,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:30:36,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:30:36,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:30:36,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:30:36,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:30:36,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:30:36,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:30:36,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:30:36,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:30:36,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:30:36,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:30:36,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:30:36,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:30:36,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:30:36,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:30:36,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:30:36,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:30:36,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:30:36,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:30:36,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:30:36,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:30:36,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:30:36,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:30:36,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:30:36,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:30:36,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:30:36,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:30:36,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:30:36,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:30:36,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:30:36,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:30:36,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:30:36,957 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 [2020-10-14 08:30:36,978 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:30:36,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:30:36,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:30:36,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:30:36,980 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:30:36,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:30:36,980 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:30:36,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:30:36,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:30:36,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:30:36,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:30:36,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:30:36,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:30:36,981 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:30:36,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:30:36,982 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:30:36,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:30:36,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:30:36,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:30:36,983 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:30:36,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:30:36,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:30:36,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:30:36,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:30:36,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:30:36,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:30:36,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:30:36,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:30:36,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:30:36,985 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:30:37,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:30:37,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:30:37,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:30:37,292 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:30:37,292 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:30:37,293 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-14 08:30:37,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/914284b2f/5f226a6af8dc424dad242f1a8ec691c4/FLAG660e50762 [2020-10-14 08:30:38,021 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:30:38,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-14 08:30:38,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/914284b2f/5f226a6af8dc424dad242f1a8ec691c4/FLAG660e50762 [2020-10-14 08:30:38,180 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/914284b2f/5f226a6af8dc424dad242f1a8ec691c4 [2020-10-14 08:30:38,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:30:38,190 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:30:38,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:30:38,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:30:38,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:30:38,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:30:38" (1/1) ... [2020-10-14 08:30:38,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a59c72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:30:38, skipping insertion in model container [2020-10-14 08:30:38,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:30:38" (1/1) ... [2020-10-14 08:30:38,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:30:38,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:30:39,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:30:39,699 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:30:40,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:30:40,530 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:30:40,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:30:40 WrapperNode [2020-10-14 08:30:40,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:30:40,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:30:40,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:30:40,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:30:40,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:30:40" (1/1) ... [2020-10-14 08:30:40,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:30:40" (1/1) ... [2020-10-14 08:30:40,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:30:40" (1/1) ... [2020-10-14 08:30:40,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:30:40" (1/1) ... [2020-10-14 08:30:40,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:30:40" (1/1) ... [2020-10-14 08:30:40,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:30:40" (1/1) ... [2020-10-14 08:30:40,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:30:40" (1/1) ... [2020-10-14 08:30:40,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:30:40,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:30:40,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:30:40,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:30:40,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:30:40" (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 [2020-10-14 08:30:40,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:30:40,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:30:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:30:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:30:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:30:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:30:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:30:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:30:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:30:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:30:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:30:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:30:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:30:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:30:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:30:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:30:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:30:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:30:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:30:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:30:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:30:43,662 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:30:43,662 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 08:30:43,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:30:43 BoogieIcfgContainer [2020-10-14 08:30:43,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:30:43,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:30:43,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:30:43,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:30:43,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:30:38" (1/3) ... [2020-10-14 08:30:43,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332fea39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:30:43, skipping insertion in model container [2020-10-14 08:30:43,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:30:40" (2/3) ... [2020-10-14 08:30:43,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332fea39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:30:43, skipping insertion in model container [2020-10-14 08:30:43,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:30:43" (3/3) ... [2020-10-14 08:30:43,679 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-14 08:30:43,689 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:30:43,698 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-14 08:30:43,712 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-14 08:30:43,740 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:30:43,740 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:30:43,741 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:30:43,741 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:30:43,741 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:30:43,741 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:30:43,741 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:30:43,742 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:30:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states. [2020-10-14 08:30:43,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-14 08:30:43,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:30:43,801 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:30:43,801 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:30:43,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:30:43,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1256923188, now seen corresponding path program 1 times [2020-10-14 08:30:43,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:30:43,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547983731] [2020-10-14 08:30:43,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:30:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:30:44,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:45,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:46,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:46,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:47,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:47,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:47,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:47,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:47,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:48,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:48,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:48,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:49,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:30:49,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 08:30:49,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 08:30:49,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-14 08:30:49,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:30:49,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:30:49,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:30:49,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 08:30:49,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-14 08:30:49,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:30:50,559 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:30:50,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:30:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:30:50,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:50,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:30:50,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:30:50,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:30:50,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 08:30:50,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:30:50,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:30:50,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:30:50,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:30:50,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:30:50,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:30:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:30:50,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547983731] [2020-10-14 08:30:50,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:30:50,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:30:50,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677408546] [2020-10-14 08:30:50,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:30:50,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:30:50,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:30:50,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:30:50,939 INFO L87 Difference]: Start difference. First operand 894 states. Second operand 4 states. [2020-10-14 08:30:51,616 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 317 [2020-10-14 08:30:57,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:30:57,887 INFO L93 Difference]: Finished difference Result 1573 states and 2827 transitions. [2020-10-14 08:30:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:30:57,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 298 [2020-10-14 08:30:57,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:30:57,926 INFO L225 Difference]: With dead ends: 1573 [2020-10-14 08:30:57,926 INFO L226 Difference]: Without dead ends: 1370 [2020-10-14 08:30:57,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:30:57,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2020-10-14 08:30:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1368. [2020-10-14 08:30:58,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1368 states. [2020-10-14 08:30:58,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 2111 transitions. [2020-10-14 08:30:58,058 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 2111 transitions. Word has length 298 [2020-10-14 08:30:58,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:30:58,060 INFO L479 AbstractCegarLoop]: Abstraction has 1368 states and 2111 transitions. [2020-10-14 08:30:58,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:30:58,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 2111 transitions. [2020-10-14 08:30:58,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-14 08:30:58,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:30:58,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:30:58,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:30:58,067 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:30:58,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:30:58,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1257261812, now seen corresponding path program 1 times [2020-10-14 08:30:58,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:30:58,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929974727] [2020-10-14 08:30:58,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:30:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:30:58,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:59,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:59,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:59,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:00,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:00,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:00,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:00,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:00,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:00,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:00,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:01,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:01,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:02,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:03,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:03,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 08:31:03,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:31:03,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 08:31:03,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:03,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:31:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:31:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 08:31:03,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:31:04,427 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:31:04,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:31:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:04,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:04,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:04,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:31:04,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:31:04,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 08:31:04,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:04,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:04,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:31:04,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:31:04,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:31:04,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:31:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:31:04,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929974727] [2020-10-14 08:31:04,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:31:04,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:31:04,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974904685] [2020-10-14 08:31:04,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 08:31:04,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:31:04,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 08:31:04,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:31:04,832 INFO L87 Difference]: Start difference. First operand 1368 states and 2111 transitions. Second operand 5 states. [2020-10-14 08:31:13,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:31:13,522 INFO L93 Difference]: Finished difference Result 4028 states and 6204 transitions. [2020-10-14 08:31:13,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:31:13,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2020-10-14 08:31:13,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:31:13,537 INFO L225 Difference]: With dead ends: 4028 [2020-10-14 08:31:13,538 INFO L226 Difference]: Without dead ends: 2677 [2020-10-14 08:31:13,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:31:13,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2020-10-14 08:31:13,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2577. [2020-10-14 08:31:13,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2577 states. [2020-10-14 08:31:13,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 3964 transitions. [2020-10-14 08:31:13,649 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 3964 transitions. Word has length 298 [2020-10-14 08:31:13,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:31:13,649 INFO L479 AbstractCegarLoop]: Abstraction has 2577 states and 3964 transitions. [2020-10-14 08:31:13,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 08:31:13,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 3964 transitions. [2020-10-14 08:31:13,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-10-14 08:31:13,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:31:13,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:31:13,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:31:13,658 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:31:13,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:31:13,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1377343407, now seen corresponding path program 1 times [2020-10-14 08:31:13,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:31:13,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018288164] [2020-10-14 08:31:13,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:31:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:13,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:14,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:14,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:14,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:14,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:14,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:15,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:15,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:15,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:15,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:15,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:16,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:16,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:16,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:18,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:18,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-14 08:31:18,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:31:18,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-14 08:31:18,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:18,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:31:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 08:31:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 08:31:18,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:31:19,670 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:31:19,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:31:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:19,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:19,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:19,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:31:19,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:31:19,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 08:31:19,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:19,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:31:19,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:31:19,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:31:19,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:31:20,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:31:20,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018288164] [2020-10-14 08:31:20,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:31:20,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:31:20,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649036624] [2020-10-14 08:31:20,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:31:20,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:31:20,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:31:20,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:31:20,018 INFO L87 Difference]: Start difference. First operand 2577 states and 3964 transitions. Second operand 4 states. [2020-10-14 08:31:29,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:31:29,280 INFO L93 Difference]: Finished difference Result 7488 states and 11476 transitions. [2020-10-14 08:31:29,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:31:29,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 300 [2020-10-14 08:31:29,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:31:29,305 INFO L225 Difference]: With dead ends: 7488 [2020-10-14 08:31:29,305 INFO L226 Difference]: Without dead ends: 5013 [2020-10-14 08:31:29,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:31:29,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2020-10-14 08:31:29,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 4929. [2020-10-14 08:31:29,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4929 states. [2020-10-14 08:31:29,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4929 states to 4929 states and 7543 transitions. [2020-10-14 08:31:29,489 INFO L78 Accepts]: Start accepts. Automaton has 4929 states and 7543 transitions. Word has length 300 [2020-10-14 08:31:29,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:31:29,490 INFO L479 AbstractCegarLoop]: Abstraction has 4929 states and 7543 transitions. [2020-10-14 08:31:29,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:31:29,494 INFO L276 IsEmpty]: Start isEmpty. Operand 4929 states and 7543 transitions. [2020-10-14 08:31:29,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-10-14 08:31:29,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:31:29,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:31:29,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:31:29,509 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:31:29,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:31:29,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1866152598, now seen corresponding path program 1 times [2020-10-14 08:31:29,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:31:29,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422407743] [2020-10-14 08:31:29,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:31:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:29,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:29,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:29,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:29,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:30,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:30,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:30,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:30,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:30,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:30,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:31,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:31,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:31,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:34,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:34,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-14 08:31:34,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:31:34,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 08:31:34,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:34,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:34,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:31:34,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:31:34,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:31:34,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:31:35,188 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:31:35,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:31:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:35,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:35,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:35,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:31:35,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:31:35,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:31:35,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:35,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:35,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:31:35,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:31:35,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:31:35,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:31:35,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:31:35,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422407743] [2020-10-14 08:31:35,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:31:35,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:31:35,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039546254] [2020-10-14 08:31:35,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:31:35,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:31:35,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:31:35,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:31:35,317 INFO L87 Difference]: Start difference. First operand 4929 states and 7543 transitions. Second operand 4 states. [2020-10-14 08:31:40,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:31:40,033 INFO L93 Difference]: Finished difference Result 14696 states and 22475 transitions. [2020-10-14 08:31:40,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:31:40,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 300 [2020-10-14 08:31:40,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:31:40,073 INFO L225 Difference]: With dead ends: 14696 [2020-10-14 08:31:40,074 INFO L226 Difference]: Without dead ends: 9787 [2020-10-14 08:31:40,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:31:40,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9787 states. [2020-10-14 08:31:40,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9787 to 4936. [2020-10-14 08:31:40,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4936 states. [2020-10-14 08:31:40,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4936 states to 4936 states and 7553 transitions. [2020-10-14 08:31:40,316 INFO L78 Accepts]: Start accepts. Automaton has 4936 states and 7553 transitions. Word has length 300 [2020-10-14 08:31:40,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:31:40,317 INFO L479 AbstractCegarLoop]: Abstraction has 4936 states and 7553 transitions. [2020-10-14 08:31:40,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:31:40,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4936 states and 7553 transitions. [2020-10-14 08:31:40,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-10-14 08:31:40,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:31:40,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:31:40,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:31:40,330 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:31:40,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:31:40,330 INFO L82 PathProgramCache]: Analyzing trace with hash 399236018, now seen corresponding path program 1 times [2020-10-14 08:31:40,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:31:40,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424606034] [2020-10-14 08:31:40,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:31:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:40,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:40,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:40,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:40,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:41,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:41,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:41,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:41,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:41,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:41,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:41,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:41,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:43,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:43,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:44,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:44,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:45,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:45,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-14 08:31:45,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:31:45,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 08:31:45,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:45,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:45,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:31:45,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:31:45,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:31:45,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:31:45,903 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:31:45,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:31:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:45,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:45,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:45,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:31:45,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:31:45,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:31:45,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:45,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:31:45,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:31:45,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:31:45,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:31:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:31:46,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424606034] [2020-10-14 08:31:46,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:31:46,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:31:46,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516056318] [2020-10-14 08:31:46,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:31:46,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:31:46,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:31:46,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:31:46,039 INFO L87 Difference]: Start difference. First operand 4936 states and 7553 transitions. Second operand 4 states. [2020-10-14 08:31:50,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:31:50,839 INFO L93 Difference]: Finished difference Result 14769 states and 22600 transitions. [2020-10-14 08:31:50,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:31:50,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 301 [2020-10-14 08:31:50,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:31:50,891 INFO L225 Difference]: With dead ends: 14769 [2020-10-14 08:31:50,891 INFO L226 Difference]: Without dead ends: 9851 [2020-10-14 08:31:50,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:31:50,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9851 states. [2020-10-14 08:31:51,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9851 to 4950. [2020-10-14 08:31:51,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4950 states. [2020-10-14 08:31:51,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4950 states to 4950 states and 7573 transitions. [2020-10-14 08:31:51,148 INFO L78 Accepts]: Start accepts. Automaton has 4950 states and 7573 transitions. Word has length 301 [2020-10-14 08:31:51,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:31:51,148 INFO L479 AbstractCegarLoop]: Abstraction has 4950 states and 7573 transitions. [2020-10-14 08:31:51,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:31:51,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4950 states and 7573 transitions. [2020-10-14 08:31:51,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-14 08:31:51,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:31:51,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:31:51,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:31:51,161 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:31:51,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:31:51,161 INFO L82 PathProgramCache]: Analyzing trace with hash 508419340, now seen corresponding path program 1 times [2020-10-14 08:31:51,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:31:51,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708181097] [2020-10-14 08:31:51,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:31:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:51,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:51,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:51,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:51,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:51,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:51,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:51,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:51,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:52,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:52,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:52,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:52,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:52,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:52,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:53,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:53,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:53,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:56,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:56,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-14 08:31:56,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:31:56,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 08:31:56,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:56,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:56,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:31:56,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 08:31:56,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 08:31:56,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:31:56,770 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:31:56,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:31:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:56,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:56,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:56,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:31:56,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:31:56,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 08:31:56,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:56,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:31:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:31:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:31:56,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:31:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:31:56,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708181097] [2020-10-14 08:31:56,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:31:56,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:31:56,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589524304] [2020-10-14 08:31:56,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:31:56,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:31:56,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:31:56,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:31:56,918 INFO L87 Difference]: Start difference. First operand 4950 states and 7573 transitions. Second operand 4 states. [2020-10-14 08:32:05,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:32:05,370 INFO L93 Difference]: Finished difference Result 13932 states and 21236 transitions. [2020-10-14 08:32:05,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:32:05,370 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 302 [2020-10-14 08:32:05,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:32:05,391 INFO L225 Difference]: With dead ends: 13932 [2020-10-14 08:32:05,391 INFO L226 Difference]: Without dead ends: 9177 [2020-10-14 08:32:05,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:32:05,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9177 states. [2020-10-14 08:32:05,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9177 to 9109. [2020-10-14 08:32:05,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9109 states. [2020-10-14 08:32:05,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9109 states to 9109 states and 13839 transitions. [2020-10-14 08:32:05,884 INFO L78 Accepts]: Start accepts. Automaton has 9109 states and 13839 transitions. Word has length 302 [2020-10-14 08:32:05,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:32:05,885 INFO L479 AbstractCegarLoop]: Abstraction has 9109 states and 13839 transitions. [2020-10-14 08:32:05,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:32:05,885 INFO L276 IsEmpty]: Start isEmpty. Operand 9109 states and 13839 transitions. [2020-10-14 08:32:05,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-14 08:32:05,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:32:05,904 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:32:05,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:32:05,905 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:32:05,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:32:05,905 INFO L82 PathProgramCache]: Analyzing trace with hash 909180073, now seen corresponding path program 1 times [2020-10-14 08:32:05,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:32:05,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538525293] [2020-10-14 08:32:05,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:32:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:06,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:06,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:06,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:06,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:06,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:06,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:06,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:06,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:07,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:07,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:07,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:07,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:07,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:07,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:07,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:07,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:07,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:11,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:11,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-14 08:32:11,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:32:11,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 08:32:11,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:11,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:32:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:32:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 08:32:11,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:32:11,617 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:32:11,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:32:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:11,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:11,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:11,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:32:11,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:32:11,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:32:11,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:11,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:11,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:32:11,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:32:11,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:32:11,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:32:11,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:32:11,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538525293] [2020-10-14 08:32:11,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:32:11,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:32:11,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598761534] [2020-10-14 08:32:11,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 08:32:11,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:32:11,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 08:32:11,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:32:11,748 INFO L87 Difference]: Start difference. First operand 9109 states and 13839 transitions. Second operand 5 states. [2020-10-14 08:32:20,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:32:20,035 INFO L93 Difference]: Finished difference Result 26919 states and 40835 transitions. [2020-10-14 08:32:20,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:32:20,036 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2020-10-14 08:32:20,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:32:20,073 INFO L225 Difference]: With dead ends: 26919 [2020-10-14 08:32:20,073 INFO L226 Difference]: Without dead ends: 17901 [2020-10-14 08:32:20,093 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 [2020-10-14 08:32:20,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17901 states. [2020-10-14 08:32:20,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17901 to 17519. [2020-10-14 08:32:20,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17519 states. [2020-10-14 08:32:20,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17519 states to 17519 states and 26425 transitions. [2020-10-14 08:32:20,989 INFO L78 Accepts]: Start accepts. Automaton has 17519 states and 26425 transitions. Word has length 302 [2020-10-14 08:32:20,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:32:20,990 INFO L479 AbstractCegarLoop]: Abstraction has 17519 states and 26425 transitions. [2020-10-14 08:32:20,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 08:32:20,990 INFO L276 IsEmpty]: Start isEmpty. Operand 17519 states and 26425 transitions. [2020-10-14 08:32:21,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-10-14 08:32:21,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:32:21,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:32:21,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:32:21,025 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:32:21,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:32:21,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1622889898, now seen corresponding path program 1 times [2020-10-14 08:32:21,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:32:21,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721939402] [2020-10-14 08:32:21,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:32:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:21,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:21,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:21,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:21,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:21,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:21,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:21,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:21,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:21,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:21,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:21,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:22,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:22,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:23,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:23,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:23,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:26,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:26,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-14 08:32:26,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:32:26,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:32:26,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:26,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:26,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:32:26,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:32:26,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 08:32:26,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:32:26,649 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:32:26,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:32:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:26,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:26,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:26,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:32:26,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:32:26,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:32:26,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:26,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:32:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:32:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:32:26,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:32:26,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:32:26,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721939402] [2020-10-14 08:32:26,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:32:26,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:32:26,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405580916] [2020-10-14 08:32:26,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:32:26,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:32:26,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:32:26,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:32:26,852 INFO L87 Difference]: Start difference. First operand 17519 states and 26425 transitions. Second operand 4 states. [2020-10-14 08:32:36,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:32:36,300 INFO L93 Difference]: Finished difference Result 51164 states and 76893 transitions. [2020-10-14 08:32:36,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:32:36,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 303 [2020-10-14 08:32:36,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:32:36,349 INFO L225 Difference]: With dead ends: 51164 [2020-10-14 08:32:36,349 INFO L226 Difference]: Without dead ends: 34364 [2020-10-14 08:32:36,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:32:36,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34364 states. [2020-10-14 08:32:37,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34364 to 34012. [2020-10-14 08:32:37,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34012 states. [2020-10-14 08:32:37,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34012 states to 34012 states and 50910 transitions. [2020-10-14 08:32:37,726 INFO L78 Accepts]: Start accepts. Automaton has 34012 states and 50910 transitions. Word has length 303 [2020-10-14 08:32:37,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:32:37,726 INFO L479 AbstractCegarLoop]: Abstraction has 34012 states and 50910 transitions. [2020-10-14 08:32:37,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:32:37,726 INFO L276 IsEmpty]: Start isEmpty. Operand 34012 states and 50910 transitions. [2020-10-14 08:32:37,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-14 08:32:37,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:32:37,775 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:32:37,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:32:37,776 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:32:37,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:32:37,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1065687693, now seen corresponding path program 1 times [2020-10-14 08:32:37,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:32:37,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782050810] [2020-10-14 08:32:37,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:32:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:37,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:41,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:42,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:42,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 08:32:42,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:32:42,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:32:42,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:42,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:42,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:32:42,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:32:42,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-14 08:32:42,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:32:43,606 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:32:43,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:32:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:43,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:43,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:43,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:32:43,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:32:43,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:32:43,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:43,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:43,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:32:43,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:32:43,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:32:43,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:32:43,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:32:43,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782050810] [2020-10-14 08:32:43,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:32:43,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:32:43,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270395527] [2020-10-14 08:32:43,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 08:32:43,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:32:43,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 08:32:43,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:32:43,771 INFO L87 Difference]: Start difference. First operand 34012 states and 50910 transitions. Second operand 5 states. [2020-10-14 08:32:55,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:32:55,215 INFO L93 Difference]: Finished difference Result 99747 states and 148799 transitions. [2020-10-14 08:32:55,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:32:55,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 304 [2020-10-14 08:32:55,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:32:55,294 INFO L225 Difference]: With dead ends: 99747 [2020-10-14 08:32:55,294 INFO L226 Difference]: Without dead ends: 66304 [2020-10-14 08:32:55,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:32:55,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66304 states. [2020-10-14 08:32:58,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66304 to 65757. [2020-10-14 08:32:58,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65757 states. [2020-10-14 08:32:59,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65757 states to 65757 states and 97561 transitions. [2020-10-14 08:32:59,852 INFO L78 Accepts]: Start accepts. Automaton has 65757 states and 97561 transitions. Word has length 304 [2020-10-14 08:32:59,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:32:59,852 INFO L479 AbstractCegarLoop]: Abstraction has 65757 states and 97561 transitions. [2020-10-14 08:32:59,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 08:32:59,852 INFO L276 IsEmpty]: Start isEmpty. Operand 65757 states and 97561 transitions. [2020-10-14 08:32:59,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-14 08:32:59,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:32:59,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:32:59,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:32:59,903 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:32:59,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:32:59,903 INFO L82 PathProgramCache]: Analyzing trace with hash -2030131597, now seen corresponding path program 1 times [2020-10-14 08:32:59,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:32:59,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805061249] [2020-10-14 08:32:59,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:33:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:33:00,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:00,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:00,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:00,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:00,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:02,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:02,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:02,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:02,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:02,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:02,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:02,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:02,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:03,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:03,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:03,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:03,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:05,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:33:05,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 08:33:05,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:33:05,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:33:05,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:33:05,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:33:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:33:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:33:05,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-14 08:33:05,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:33:05,611 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:33:05,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:33:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:33:05,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:05,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:33:05,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:33:05,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:33:05,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:33:05,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:33:05,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:33:05,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:33:05,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:33:05,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:33:05,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:33:05,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:33:05,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805061249] [2020-10-14 08:33:05,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:33:05,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:33:05,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230554045] [2020-10-14 08:33:05,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 08:33:05,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:33:05,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 08:33:05,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:33:05,740 INFO L87 Difference]: Start difference. First operand 65757 states and 97561 transitions. Second operand 5 states. [2020-10-14 08:33:17,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:33:17,110 INFO L93 Difference]: Finished difference Result 135784 states and 201087 transitions. [2020-10-14 08:33:17,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:33:17,112 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 304 [2020-10-14 08:33:17,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:33:17,202 INFO L225 Difference]: With dead ends: 135784 [2020-10-14 08:33:17,202 INFO L226 Difference]: Without dead ends: 70749 [2020-10-14 08:33:17,283 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 [2020-10-14 08:33:17,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70749 states. [2020-10-14 08:33:20,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70749 to 65473. [2020-10-14 08:33:20,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65473 states. [2020-10-14 08:33:20,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65473 states to 65473 states and 96993 transitions. [2020-10-14 08:33:20,879 INFO L78 Accepts]: Start accepts. Automaton has 65473 states and 96993 transitions. Word has length 304 [2020-10-14 08:33:20,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:33:20,879 INFO L479 AbstractCegarLoop]: Abstraction has 65473 states and 96993 transitions. [2020-10-14 08:33:20,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 08:33:20,879 INFO L276 IsEmpty]: Start isEmpty. Operand 65473 states and 96993 transitions. [2020-10-14 08:33:20,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-14 08:33:20,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:33:20,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:33:20,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:33:20,935 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:33:20,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:33:20,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1530342315, now seen corresponding path program 1 times [2020-10-14 08:33:20,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:33:20,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167584761] [2020-10-14 08:33:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:33:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:33:20,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:21,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:21,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:21,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:21,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:21,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:24,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:24,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:24,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:24,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:24,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:24,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:24,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:25,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:25,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:25,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:25,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:25,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:33:25,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-14 08:33:25,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:33:25,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 08:33:25,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:33:25,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:33:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:33:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-14 08:33:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:33:25,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:33:26,519 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:33:26,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:33:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:33:26,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:26,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:33:26,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:33:26,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:33:26,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:33:26,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:33:26,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:33:26,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:33:26,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:33:26,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:33:26,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:33:26,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:33:26,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167584761] [2020-10-14 08:33:26,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:33:26,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:33:26,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369686785] [2020-10-14 08:33:26,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:33:26,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:33:26,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:33:26,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:33:26,596 INFO L87 Difference]: Start difference. First operand 65473 states and 96993 transitions. Second operand 4 states. [2020-10-14 08:33:37,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:33:37,009 INFO L93 Difference]: Finished difference Result 194835 states and 288292 transitions. [2020-10-14 08:33:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:33:37,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 306 [2020-10-14 08:33:37,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:33:37,130 INFO L225 Difference]: With dead ends: 194835 [2020-10-14 08:33:37,130 INFO L226 Difference]: Without dead ends: 130112 [2020-10-14 08:33:37,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:33:37,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130112 states. [2020-10-14 08:33:42,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130112 to 65645. [2020-10-14 08:33:42,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65645 states. [2020-10-14 08:33:42,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65645 states to 65645 states and 97225 transitions. [2020-10-14 08:33:42,367 INFO L78 Accepts]: Start accepts. Automaton has 65645 states and 97225 transitions. Word has length 306 [2020-10-14 08:33:42,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:33:42,368 INFO L479 AbstractCegarLoop]: Abstraction has 65645 states and 97225 transitions. [2020-10-14 08:33:42,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:33:42,368 INFO L276 IsEmpty]: Start isEmpty. Operand 65645 states and 97225 transitions. [2020-10-14 08:33:42,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-10-14 08:33:42,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:33:42,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:33:42,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:33:42,410 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:33:42,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:33:42,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1135010801, now seen corresponding path program 1 times [2020-10-14 08:33:42,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:33:42,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978520165] [2020-10-14 08:33:42,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:33:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:33:42,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:42,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:42,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:42,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:42,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:43,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:43,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:43,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:43,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:43,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:43,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:43,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:43,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:43,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:46,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:47,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:47,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:47,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:33:47,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-10-14 08:33:47,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:33:47,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-14 08:33:47,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:33:47,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:33:47,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:33:47,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 08:33:47,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:33:47,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:33:48,065 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:33:48,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:33:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:33:48,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:48,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:33:48,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:33:48,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:33:48,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:33:48,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:33:48,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:33:48,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:33:48,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:33:48,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:33:48,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:33:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:33:48,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978520165] [2020-10-14 08:33:48,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:33:48,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:33:48,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081269362] [2020-10-14 08:33:48,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:33:48,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:33:48,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:33:48,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:33:48,137 INFO L87 Difference]: Start difference. First operand 65645 states and 97225 transitions. Second operand 4 states. [2020-10-14 08:33:59,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:33:59,116 INFO L93 Difference]: Finished difference Result 195143 states and 288683 transitions. [2020-10-14 08:33:59,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:33:59,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 307 [2020-10-14 08:33:59,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:33:59,242 INFO L225 Difference]: With dead ends: 195143 [2020-10-14 08:33:59,243 INFO L226 Difference]: Without dead ends: 130272 [2020-10-14 08:33:59,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:33:59,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130272 states. [2020-10-14 08:34:03,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130272 to 65901. [2020-10-14 08:34:03,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65901 states. [2020-10-14 08:34:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65901 states to 65901 states and 97581 transitions. [2020-10-14 08:34:03,316 INFO L78 Accepts]: Start accepts. Automaton has 65901 states and 97581 transitions. Word has length 307 [2020-10-14 08:34:03,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:34:03,317 INFO L479 AbstractCegarLoop]: Abstraction has 65901 states and 97581 transitions. [2020-10-14 08:34:03,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:34:03,317 INFO L276 IsEmpty]: Start isEmpty. Operand 65901 states and 97581 transitions. [2020-10-14 08:34:03,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-14 08:34:03,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:34:03,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:34:03,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:34:03,363 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:34:03,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:34:03,364 INFO L82 PathProgramCache]: Analyzing trace with hash -483207298, now seen corresponding path program 1 times [2020-10-14 08:34:03,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:34:03,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361885146] [2020-10-14 08:34:03,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:34:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:34:03,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:03,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:03,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:03,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:04,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:04,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:09,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:34:09,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-14 08:34:09,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:34:09,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6054 [2020-10-14 08:34:09,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:34:09,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:34:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:34:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:34:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 08:34:09,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:34:10,120 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 08:34:10,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:34:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:34:10,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:10,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:34:10,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:34:10,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:34:10,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:34:10,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:34:10,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:34:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:34:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:34:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:34:10,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:34:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:34:10,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361885146] [2020-10-14 08:34:10,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:34:10,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:34:10,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319773916] [2020-10-14 08:34:10,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 08:34:10,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:34:10,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 08:34:10,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:34:10,245 INFO L87 Difference]: Start difference. First operand 65901 states and 97581 transitions. Second operand 5 states.