/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:59:08,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:59:08,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:59:08,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:59:08,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:59:08,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:59:08,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:59:08,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:59:08,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:59:08,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:59:08,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:59:08,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:59:08,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:59:08,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:59:08,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:59:08,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:59:08,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:59:08,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:59:08,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:59:08,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:59:08,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:59:08,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:59:08,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:59:08,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:59:08,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:59:08,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:59:08,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:59:08,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:59:08,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:59:08,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:59:08,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:59:08,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:59:08,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:59:08,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:59:08,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:59:08,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:59:08,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:59:08,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:59:08,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:59:08,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:59:08,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:59:08,873 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 [2020-10-15 02:59:08,913 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:59:08,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:59:08,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:59:08,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:59:08,916 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:59:08,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:59:08,916 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:59:08,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:59:08,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:59:08,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:59:08,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:59:08,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:59:08,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:59:08,919 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:59:08,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:59:08,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:59:08,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:59:08,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:59:08,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:59:08,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:59:08,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:59:08,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:59:08,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:59:08,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:59:08,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:59:08,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:59:08,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:59:08,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:59:08,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:59:08,922 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:59:09,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:59:09,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:59:09,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:59:09,235 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:59:09,236 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:59:09,236 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-15 02:59:09,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/598f44e5a/2ac589b207024d9a86c22b35a885d1f3/FLAG074b12402 [2020-10-15 02:59:09,846 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:59:09,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-15 02:59:09,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/598f44e5a/2ac589b207024d9a86c22b35a885d1f3/FLAG074b12402 [2020-10-15 02:59:10,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/598f44e5a/2ac589b207024d9a86c22b35a885d1f3 [2020-10-15 02:59:10,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:59:10,142 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:59:10,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:59:10,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:59:10,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:59:10,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:59:10" (1/1) ... [2020-10-15 02:59:10,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d574d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:10, skipping insertion in model container [2020-10-15 02:59:10,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:59:10" (1/1) ... [2020-10-15 02:59:10,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:59:10,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:59:10,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:59:10,868 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:59:11,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:59:11,085 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:59:11,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:11 WrapperNode [2020-10-15 02:59:11,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:59:11,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:59:11,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:59:11,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:59:11,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:11" (1/1) ... [2020-10-15 02:59:11,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:11" (1/1) ... [2020-10-15 02:59:11,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:11" (1/1) ... [2020-10-15 02:59:11,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:11" (1/1) ... [2020-10-15 02:59:11,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:11" (1/1) ... [2020-10-15 02:59:11,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:11" (1/1) ... [2020-10-15 02:59:11,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:11" (1/1) ... [2020-10-15 02:59:11,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:59:11,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:59:11,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:59:11,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:59:11,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:11" (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 [2020-10-15 02:59:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:59:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:59:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:59:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:59:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:59:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:59:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:59:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:59:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:59:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:59:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:59:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:59:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:59:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:59:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:59:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:59:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:59:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:59:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:59:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:59:12,705 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:59:12,705 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 02:59:12,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:59:12 BoogieIcfgContainer [2020-10-15 02:59:12,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:59:12,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:59:12,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:59:12,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:59:12,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:59:10" (1/3) ... [2020-10-15 02:59:12,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176ce60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:59:12, skipping insertion in model container [2020-10-15 02:59:12,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:11" (2/3) ... [2020-10-15 02:59:12,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176ce60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:59:12, skipping insertion in model container [2020-10-15 02:59:12,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:59:12" (3/3) ... [2020-10-15 02:59:12,722 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-15 02:59:12,733 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:59:12,742 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-15 02:59:12,756 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 02:59:12,784 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:59:12,784 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:59:12,784 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:59:12,784 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:59:12,784 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:59:12,785 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:59:12,785 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:59:12,785 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:59:12,812 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states. [2020-10-15 02:59:12,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-15 02:59:12,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:59:12,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:59:12,830 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:59:12,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:59:12,837 INFO L82 PathProgramCache]: Analyzing trace with hash 32558119, now seen corresponding path program 1 times [2020-10-15 02:59:12,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:59:12,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872449392] [2020-10-15 02:59:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:59:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:13,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:13,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:13,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:14,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:14,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:14,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:14,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:14,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:15,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:15,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:17,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:18,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:18,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-15 02:59:18,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 02:59:18,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:59:18,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:18,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:18,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:59:18,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-15 02:59:18,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-15 02:59:18,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-15 02:59:18,816 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 02:59:18,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:59:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:18,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:18,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:18,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:59:18,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:59:18,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:59:18,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:18,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:18,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:59:18,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:59:18,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:59:18,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:59:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:59:18,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872449392] [2020-10-15 02:59:18,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:59:18,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 02:59:18,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811031940] [2020-10-15 02:59:18,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 02:59:18,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:59:18,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 02:59:18,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 02:59:18,917 INFO L87 Difference]: Start difference. First operand 382 states. Second operand 4 states. [2020-10-15 02:59:19,196 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-15 02:59:21,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:59:21,808 INFO L93 Difference]: Finished difference Result 689 states and 1222 transitions. [2020-10-15 02:59:21,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:59:21,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-10-15 02:59:21,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:59:21,845 INFO L225 Difference]: With dead ends: 689 [2020-10-15 02:59:21,845 INFO L226 Difference]: Without dead ends: 542 [2020-10-15 02:59:21,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:59:21,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-10-15 02:59:21,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 540. [2020-10-15 02:59:21,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2020-10-15 02:59:21,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 789 transitions. [2020-10-15 02:59:21,957 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 789 transitions. Word has length 143 [2020-10-15 02:59:21,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:59:21,961 INFO L479 AbstractCegarLoop]: Abstraction has 540 states and 789 transitions. [2020-10-15 02:59:21,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 02:59:21,961 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 789 transitions. [2020-10-15 02:59:21,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-15 02:59:21,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:59:21,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:59:21,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:59:21,968 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:59:21,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:59:21,969 INFO L82 PathProgramCache]: Analyzing trace with hash 2034356574, now seen corresponding path program 1 times [2020-10-15 02:59:21,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:59:21,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694853474] [2020-10-15 02:59:21,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:59:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:22,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:22,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:22,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:22,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:22,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:22,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:22,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:22,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:23,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:23,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:23,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:25,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:25,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:27,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:27,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-15 02:59:27,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 02:59:27,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-15 02:59:27,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:27,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:27,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:59:27,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-15 02:59:27,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 02:59:27,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:59:27,379 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 02:59:27,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:59:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:27,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:27,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:27,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:59:27,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:59:27,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:59:27,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:27,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:27,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:59:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:59:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:59:27,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:59:27,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:59:27,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694853474] [2020-10-15 02:59:27,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:59:27,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 02:59:27,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624109503] [2020-10-15 02:59:27,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 02:59:27,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:59:27,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 02:59:27,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 02:59:27,463 INFO L87 Difference]: Start difference. First operand 540 states and 789 transitions. Second operand 4 states. [2020-10-15 02:59:27,817 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-15 02:59:29,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:59:29,909 INFO L93 Difference]: Finished difference Result 1073 states and 1622 transitions. [2020-10-15 02:59:29,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:59:29,910 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-10-15 02:59:29,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:59:29,924 INFO L225 Difference]: With dead ends: 1073 [2020-10-15 02:59:29,925 INFO L226 Difference]: Without dead ends: 868 [2020-10-15 02:59:29,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:59:29,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-10-15 02:59:29,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 866. [2020-10-15 02:59:29,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-10-15 02:59:30,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1287 transitions. [2020-10-15 02:59:30,004 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1287 transitions. Word has length 143 [2020-10-15 02:59:30,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:59:30,005 INFO L479 AbstractCegarLoop]: Abstraction has 866 states and 1287 transitions. [2020-10-15 02:59:30,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 02:59:30,005 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1287 transitions. [2020-10-15 02:59:30,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-15 02:59:30,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:59:30,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:59:30,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:59:30,010 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:59:30,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:59:30,010 INFO L82 PathProgramCache]: Analyzing trace with hash -305856857, now seen corresponding path program 1 times [2020-10-15 02:59:30,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:59:30,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626256393] [2020-10-15 02:59:30,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:59:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:30,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:30,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:30,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:30,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:30,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:30,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:30,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:30,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:30,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:31,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:31,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:32,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:33,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:35,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:35,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-15 02:59:35,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 02:59:35,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 02:59:35,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:35,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:35,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:59:35,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-15 02:59:35,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-15 02:59:35,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:59:35,419 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 02:59:35,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:59:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:35,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:35,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:35,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:59:35,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:59:35,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:59:35,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:35,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:59:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:59:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:59:35,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:59:35,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:59:35,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626256393] [2020-10-15 02:59:35,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:59:35,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 02:59:35,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157526107] [2020-10-15 02:59:35,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 02:59:35,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:59:35,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 02:59:35,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 02:59:35,479 INFO L87 Difference]: Start difference. First operand 866 states and 1287 transitions. Second operand 4 states. [2020-10-15 02:59:35,710 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-15 02:59:37,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:59:37,636 INFO L93 Difference]: Finished difference Result 1869 states and 2863 transitions. [2020-10-15 02:59:37,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:59:37,640 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-10-15 02:59:37,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:59:37,651 INFO L225 Difference]: With dead ends: 1869 [2020-10-15 02:59:37,651 INFO L226 Difference]: Without dead ends: 1524 [2020-10-15 02:59:37,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:59:37,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2020-10-15 02:59:37,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1522. [2020-10-15 02:59:37,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1522 states. [2020-10-15 02:59:37,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 2287 transitions. [2020-10-15 02:59:37,744 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 2287 transitions. Word has length 143 [2020-10-15 02:59:37,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:59:37,745 INFO L479 AbstractCegarLoop]: Abstraction has 1522 states and 2287 transitions. [2020-10-15 02:59:37,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 02:59:37,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 2287 transitions. [2020-10-15 02:59:37,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-15 02:59:37,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:59:37,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:59:37,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:59:37,758 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:59:37,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:59:37,758 INFO L82 PathProgramCache]: Analyzing trace with hash -306195481, now seen corresponding path program 1 times [2020-10-15 02:59:37,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:59:37,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973039412] [2020-10-15 02:59:37,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:59:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:37,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:38,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:38,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:38,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:38,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:38,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:38,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:38,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:38,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:39,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:39,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:39,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:40,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:42,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:42,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-15 02:59:42,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 02:59:42,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-15 02:59:42,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:42,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:59:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:59:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:59:42,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:59:43,207 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 02:59:43,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:59:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:43,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:43,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:43,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:59:43,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:59:43,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:59:43,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:43,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:43,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:59:43,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:59:43,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:59:43,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:59:43,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:59:43,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973039412] [2020-10-15 02:59:43,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:59:43,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:59:43,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763369902] [2020-10-15 02:59:43,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:59:43,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:59:43,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:59:43,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:59:43,343 INFO L87 Difference]: Start difference. First operand 1522 states and 2287 transitions. Second operand 5 states. [2020-10-15 02:59:46,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:59:46,595 INFO L93 Difference]: Finished difference Result 4448 states and 6672 transitions. [2020-10-15 02:59:46,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:59:46,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-15 02:59:46,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:59:46,612 INFO L225 Difference]: With dead ends: 4448 [2020-10-15 02:59:46,612 INFO L226 Difference]: Without dead ends: 2937 [2020-10-15 02:59:46,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:59:46,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2020-10-15 02:59:46,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2907. [2020-10-15 02:59:46,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2907 states. [2020-10-15 02:59:46,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 4331 transitions. [2020-10-15 02:59:46,766 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 4331 transitions. Word has length 143 [2020-10-15 02:59:46,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:59:46,766 INFO L479 AbstractCegarLoop]: Abstraction has 2907 states and 4331 transitions. [2020-10-15 02:59:46,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:59:46,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 4331 transitions. [2020-10-15 02:59:46,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-15 02:59:46,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:59:46,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:59:46,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:59:46,775 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:59:46,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:59:46,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1702880216, now seen corresponding path program 1 times [2020-10-15 02:59:46,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:59:46,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797151353] [2020-10-15 02:59:46,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:59:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:46,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:46,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:46,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:47,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:47,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:47,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:47,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:47,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:47,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:47,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:51,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:51,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:51,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:51,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:51,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-15 02:59:51,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 02:59:51,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 02:59:51,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:51,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:59:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:59:51,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-15 02:59:51,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:59:52,113 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 02:59:52,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:59:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:52,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:52,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:52,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:59:52,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:59:52,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:59:52,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:52,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:52,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:59:52,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:59:52,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:59:52,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:59:52,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:59:52,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797151353] [2020-10-15 02:59:52,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:59:52,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:59:52,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292985648] [2020-10-15 02:59:52,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:59:52,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:59:52,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:59:52,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:59:52,185 INFO L87 Difference]: Start difference. First operand 2907 states and 4331 transitions. Second operand 5 states. [2020-10-15 02:59:54,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:59:54,658 INFO L93 Difference]: Finished difference Result 8474 states and 12594 transitions. [2020-10-15 02:59:54,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:59:54,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2020-10-15 02:59:54,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:59:54,687 INFO L225 Difference]: With dead ends: 8474 [2020-10-15 02:59:54,688 INFO L226 Difference]: Without dead ends: 5608 [2020-10-15 02:59:54,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:59:54,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5608 states. [2020-10-15 02:59:54,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5608 to 5560. [2020-10-15 02:59:54,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5560 states. [2020-10-15 02:59:54,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5560 states to 5560 states and 8199 transitions. [2020-10-15 02:59:54,942 INFO L78 Accepts]: Start accepts. Automaton has 5560 states and 8199 transitions. Word has length 144 [2020-10-15 02:59:54,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:59:54,943 INFO L479 AbstractCegarLoop]: Abstraction has 5560 states and 8199 transitions. [2020-10-15 02:59:54,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:59:54,943 INFO L276 IsEmpty]: Start isEmpty. Operand 5560 states and 8199 transitions. [2020-10-15 02:59:54,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-15 02:59:54,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:59:54,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:59:54,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:59:54,953 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:59:54,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:59:54,954 INFO L82 PathProgramCache]: Analyzing trace with hash -2024109053, now seen corresponding path program 1 times [2020-10-15 02:59:54,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:59:54,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459503070] [2020-10-15 02:59:54,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:59:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:54,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:55,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:55,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:55,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:55,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:55,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:55,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:55,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:55,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:55,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:56,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:57,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:57,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:58,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:58,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:59,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:59,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-15 02:59:59,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 02:59:59,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 02:59:59,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:59,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:59:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:59:59,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-15 02:59:59,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:00,277 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 03:00:00,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:00,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:00,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:00,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:00,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:00,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:00:00,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:00,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:00,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:00,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:00,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:00,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:00,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:00,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459503070] [2020-10-15 03:00:00,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:00,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:00:00,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995663582] [2020-10-15 03:00:00,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:00:00,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:00,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:00:00,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:00,340 INFO L87 Difference]: Start difference. First operand 5560 states and 8199 transitions. Second operand 5 states. [2020-10-15 03:00:02,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:02,897 INFO L93 Difference]: Finished difference Result 15113 states and 22215 transitions. [2020-10-15 03:00:02,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:02,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-10-15 03:00:02,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:02,946 INFO L225 Difference]: With dead ends: 15113 [2020-10-15 03:00:02,947 INFO L226 Difference]: Without dead ends: 9586 [2020-10-15 03:00:02,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:00:02,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9586 states. [2020-10-15 03:00:03,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9586 to 9560. [2020-10-15 03:00:03,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9560 states. [2020-10-15 03:00:03,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9560 states to 9560 states and 13890 transitions. [2020-10-15 03:00:03,537 INFO L78 Accepts]: Start accepts. Automaton has 9560 states and 13890 transitions. Word has length 145 [2020-10-15 03:00:03,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:03,537 INFO L479 AbstractCegarLoop]: Abstraction has 9560 states and 13890 transitions. [2020-10-15 03:00:03,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:00:03,537 INFO L276 IsEmpty]: Start isEmpty. Operand 9560 states and 13890 transitions. [2020-10-15 03:00:03,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-15 03:00:03,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:03,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:00:03,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:00:03,552 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:00:03,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:03,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1669018122, now seen corresponding path program 1 times [2020-10-15 03:00:03,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:03,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370004485] [2020-10-15 03:00:03,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:03,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:03,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:03,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:03,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:03,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:03,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:03,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:03,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:04,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:04,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:04,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:06,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:06,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:06,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:08,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:08,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-15 03:00:08,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:00:08,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 03:00:08,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:08,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:08,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:00:08,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:00:08,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-15 03:00:08,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:08,923 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 03:00:08,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:08,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:08,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:08,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:08,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:08,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:00:08,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:08,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:08,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:08,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:08,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:08,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:00:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:08,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [370004485] [2020-10-15 03:00:08,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:08,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:00:08,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11028653] [2020-10-15 03:00:08,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:00:08,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:08,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:00:08,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:08,993 INFO L87 Difference]: Start difference. First operand 9560 states and 13890 transitions. Second operand 5 states. [2020-10-15 03:00:12,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:12,737 INFO L93 Difference]: Finished difference Result 25646 states and 37152 transitions. [2020-10-15 03:00:12,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:12,738 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-10-15 03:00:12,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:12,788 INFO L225 Difference]: With dead ends: 25646 [2020-10-15 03:00:12,788 INFO L226 Difference]: Without dead ends: 16330 [2020-10-15 03:00:12,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:00:12,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16330 states. [2020-10-15 03:00:13,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16330 to 16266. [2020-10-15 03:00:13,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16266 states. [2020-10-15 03:00:13,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16266 states to 16266 states and 23244 transitions. [2020-10-15 03:00:13,549 INFO L78 Accepts]: Start accepts. Automaton has 16266 states and 23244 transitions. Word has length 146 [2020-10-15 03:00:13,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:13,549 INFO L479 AbstractCegarLoop]: Abstraction has 16266 states and 23244 transitions. [2020-10-15 03:00:13,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:00:13,549 INFO L276 IsEmpty]: Start isEmpty. Operand 16266 states and 23244 transitions. [2020-10-15 03:00:13,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-15 03:00:13,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:13,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:00:13,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:00:13,578 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:00:13,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:13,578 INFO L82 PathProgramCache]: Analyzing trace with hash -863740444, now seen corresponding path program 1 times [2020-10-15 03:00:13,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:13,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151554701] [2020-10-15 03:00:13,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:13,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:13,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:13,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:13,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:13,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:13,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:14,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:16,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:16,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:18,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:18,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-15 03:00:18,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:00:18,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:00:18,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:18,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:18,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:00:18,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:00:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-15 03:00:18,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:18,979 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 03:00:18,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:18,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:18,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:18,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:18,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:18,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:00:18,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:18,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:18,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:19,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:19,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151554701] [2020-10-15 03:00:19,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:19,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:00:19,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626065401] [2020-10-15 03:00:19,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:00:19,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:19,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:00:19,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:19,068 INFO L87 Difference]: Start difference. First operand 16266 states and 23244 transitions. Second operand 5 states. [2020-10-15 03:00:23,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:23,532 INFO L93 Difference]: Finished difference Result 46565 states and 66550 transitions. [2020-10-15 03:00:23,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:23,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-10-15 03:00:23,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:23,601 INFO L225 Difference]: With dead ends: 46565 [2020-10-15 03:00:23,602 INFO L226 Difference]: Without dead ends: 31370 [2020-10-15 03:00:23,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:00:23,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31370 states. [2020-10-15 03:00:25,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31370 to 31306. [2020-10-15 03:00:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31306 states. [2020-10-15 03:00:25,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31306 states to 31306 states and 44120 transitions. [2020-10-15 03:00:25,771 INFO L78 Accepts]: Start accepts. Automaton has 31306 states and 44120 transitions. Word has length 147 [2020-10-15 03:00:25,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:25,771 INFO L479 AbstractCegarLoop]: Abstraction has 31306 states and 44120 transitions. [2020-10-15 03:00:25,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:00:25,771 INFO L276 IsEmpty]: Start isEmpty. Operand 31306 states and 44120 transitions. [2020-10-15 03:00:25,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-15 03:00:25,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:25,817 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] [2020-10-15 03:00:25,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:00:25,817 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:00:25,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:25,819 INFO L82 PathProgramCache]: Analyzing trace with hash -2034726986, now seen corresponding path program 1 times [2020-10-15 03:00:25,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:25,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157529843] [2020-10-15 03:00:25,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:25,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:25,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:25,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:25,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:25,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:26,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:30,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:30,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-15 03:00:30,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:00:30,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:00:30,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:30,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:30,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:00:30,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 03:00:30,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 03:00:30,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:31,165 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 03:00:31,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:31,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:31,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:31,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:31,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:31,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:00:31,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:31,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:31,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:31,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:31,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:31,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:31,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157529843] [2020-10-15 03:00:31,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:31,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:00:31,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441389016] [2020-10-15 03:00:31,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:00:31,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:31,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:00:31,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:31,202 INFO L87 Difference]: Start difference. First operand 31306 states and 44120 transitions. Second operand 5 states. [2020-10-15 03:00:33,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:33,877 INFO L93 Difference]: Finished difference Result 57511 states and 81287 transitions. [2020-10-15 03:00:33,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:33,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-10-15 03:00:33,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:33,920 INFO L225 Difference]: With dead ends: 57511 [2020-10-15 03:00:33,920 INFO L226 Difference]: Without dead ends: 27122 [2020-10-15 03:00:33,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:00:34,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27122 states. [2020-10-15 03:00:36,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27122 to 27118. [2020-10-15 03:00:36,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27118 states. [2020-10-15 03:00:36,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27118 states to 27118 states and 38249 transitions. [2020-10-15 03:00:36,426 INFO L78 Accepts]: Start accepts. Automaton has 27118 states and 38249 transitions. Word has length 148 [2020-10-15 03:00:36,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:36,426 INFO L479 AbstractCegarLoop]: Abstraction has 27118 states and 38249 transitions. [2020-10-15 03:00:36,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:00:36,426 INFO L276 IsEmpty]: Start isEmpty. Operand 27118 states and 38249 transitions. [2020-10-15 03:00:36,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-15 03:00:36,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:36,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:00:36,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:00:36,446 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:00:36,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:36,446 INFO L82 PathProgramCache]: Analyzing trace with hash -338890156, now seen corresponding path program 1 times [2020-10-15 03:00:36,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:36,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878096114] [2020-10-15 03:00:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:36,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:36,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:36,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:36,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:36,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:40,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:40,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:40,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:41,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:41,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-15 03:00:41,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:00:41,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:00:41,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:41,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:41,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:00:41,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:00:41,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-15 03:00:41,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:41,811 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 03:00:41,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:41,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:41,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:41,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:41,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:41,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:00:41,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:41,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:41,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:41,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:41,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:41,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:41,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:41,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878096114] [2020-10-15 03:00:41,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:41,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:00:41,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443894935] [2020-10-15 03:00:41,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:00:41,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:41,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:00:41,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:41,870 INFO L87 Difference]: Start difference. First operand 27118 states and 38249 transitions. Second operand 5 states. [2020-10-15 03:00:45,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:45,829 INFO L93 Difference]: Finished difference Result 66085 states and 93038 transitions. [2020-10-15 03:00:45,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:45,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-15 03:00:45,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:45,885 INFO L225 Difference]: With dead ends: 66085 [2020-10-15 03:00:45,885 INFO L226 Difference]: Without dead ends: 39987 [2020-10-15 03:00:45,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:00:45,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39987 states. [2020-10-15 03:00:47,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39987 to 39936. [2020-10-15 03:00:47,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39936 states. [2020-10-15 03:00:47,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39936 states to 39936 states and 55230 transitions. [2020-10-15 03:00:47,998 INFO L78 Accepts]: Start accepts. Automaton has 39936 states and 55230 transitions. Word has length 155 [2020-10-15 03:00:47,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:47,999 INFO L479 AbstractCegarLoop]: Abstraction has 39936 states and 55230 transitions. [2020-10-15 03:00:47,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:00:47,999 INFO L276 IsEmpty]: Start isEmpty. Operand 39936 states and 55230 transitions. [2020-10-15 03:00:48,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-15 03:00:48,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:48,026 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] [2020-10-15 03:00:48,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:00:48,026 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:00:48,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:48,027 INFO L82 PathProgramCache]: Analyzing trace with hash -949897786, now seen corresponding path program 1 times [2020-10-15 03:00:48,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:48,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665386642] [2020-10-15 03:00:48,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:48,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:48,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:48,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:48,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:48,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:51,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:51,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:51,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:51,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:53,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:53,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-15 03:00:53,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:00:53,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 03:00:53,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:53,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:00:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:00:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-15 03:00:53,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:53,693 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 03:00:53,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:53,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:53,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:53,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:53,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:53,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:00:53,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:53,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:53,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:53,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:53,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:53,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:53,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:53,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665386642] [2020-10-15 03:00:53,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:53,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:00:53,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140177887] [2020-10-15 03:00:53,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:00:53,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:53,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:00:53,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:53,743 INFO L87 Difference]: Start difference. First operand 39936 states and 55230 transitions. Second operand 5 states. [2020-10-15 03:00:54,039 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-15 03:00:58,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:58,867 INFO L93 Difference]: Finished difference Result 70605 states and 97681 transitions. [2020-10-15 03:00:58,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:00:58,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-10-15 03:00:58,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:58,917 INFO L225 Difference]: With dead ends: 70605 [2020-10-15 03:00:58,917 INFO L226 Difference]: Without dead ends: 39967 [2020-10-15 03:00:58,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:00:58,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39967 states. [2020-10-15 03:01:01,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39967 to 39923. [2020-10-15 03:01:01,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39923 states. [2020-10-15 03:01:01,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39923 states to 39923 states and 54939 transitions. [2020-10-15 03:01:01,126 INFO L78 Accepts]: Start accepts. Automaton has 39923 states and 54939 transitions. Word has length 156 [2020-10-15 03:01:01,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:01:01,126 INFO L479 AbstractCegarLoop]: Abstraction has 39923 states and 54939 transitions. [2020-10-15 03:01:01,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:01:01,127 INFO L276 IsEmpty]: Start isEmpty. Operand 39923 states and 54939 transitions. [2020-10-15 03:01:01,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-15 03:01:01,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:01:01,145 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] [2020-10-15 03:01:01,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:01:01,145 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:01:01,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:01:01,146 INFO L82 PathProgramCache]: Analyzing trace with hash -508594570, now seen corresponding path program 1 times [2020-10-15 03:01:01,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:01:01,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247663022] [2020-10-15 03:01:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:01:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:01,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:01,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:01,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:01,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:01,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:06,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:06,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-15 03:01:06,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:01:06,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-15 03:01:06,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:06,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:01:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 03:01:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 03:01:06,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:06,472 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 03:01:06,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:06,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:06,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:06,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:06,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:06,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:01:06,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:06,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:01:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:01:06,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:06,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:06,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247663022] [2020-10-15 03:01:06,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:06,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:01:06,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324713682] [2020-10-15 03:01:06,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:01:06,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:06,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:01:06,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:01:06,510 INFO L87 Difference]: Start difference. First operand 39923 states and 54939 transitions. Second operand 5 states. [2020-10-15 03:01:10,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:01:10,623 INFO L93 Difference]: Finished difference Result 72946 states and 100496 transitions. [2020-10-15 03:01:10,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:01:10,623 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-10-15 03:01:10,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:01:10,663 INFO L225 Difference]: With dead ends: 72946 [2020-10-15 03:01:10,663 INFO L226 Difference]: Without dead ends: 33740 [2020-10-15 03:01:10,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:01:10,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33740 states. [2020-10-15 03:01:12,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33740 to 33739. [2020-10-15 03:01:12,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33739 states. [2020-10-15 03:01:12,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33739 states to 33739 states and 46353 transitions. [2020-10-15 03:01:12,706 INFO L78 Accepts]: Start accepts. Automaton has 33739 states and 46353 transitions. Word has length 157 [2020-10-15 03:01:12,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:01:12,706 INFO L479 AbstractCegarLoop]: Abstraction has 33739 states and 46353 transitions. [2020-10-15 03:01:12,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:01:12,707 INFO L276 IsEmpty]: Start isEmpty. Operand 33739 states and 46353 transitions. [2020-10-15 03:01:12,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-15 03:01:12,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:01:12,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:01:12,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:01:12,728 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:01:12,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:01:12,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1087686065, now seen corresponding path program 1 times [2020-10-15 03:01:12,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:01:12,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [535977913] [2020-10-15 03:01:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:01:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:12,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:12,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:12,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:12,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:12,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:12,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:13,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:13,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:13,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:17,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:17,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-15 03:01:17,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:01:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 03:01:17,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:17,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:01:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:01:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 03:01:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:18,059 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 03:01:18,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:18,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:18,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:18,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:18,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:18,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:01:18,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:18,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:18,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:01:18,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:18,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:01:18,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:18,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [535977913] [2020-10-15 03:01:18,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:18,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:01:18,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236905441] [2020-10-15 03:01:18,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:01:18,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:18,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:01:18,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:01:18,160 INFO L87 Difference]: Start difference. First operand 33739 states and 46353 transitions. Second operand 6 states. [2020-10-15 03:01:18,450 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 03:01:24,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:01:24,672 INFO L93 Difference]: Finished difference Result 78305 states and 108507 transitions. [2020-10-15 03:01:24,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:01:24,673 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2020-10-15 03:01:24,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:01:24,744 INFO L225 Difference]: With dead ends: 78305 [2020-10-15 03:01:24,744 INFO L226 Difference]: Without dead ends: 45911 [2020-10-15 03:01:24,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:01:24,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45911 states. [2020-10-15 03:01:28,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45911 to 45902. [2020-10-15 03:01:28,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45902 states. [2020-10-15 03:01:28,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45902 states to 45902 states and 63110 transitions. [2020-10-15 03:01:28,222 INFO L78 Accepts]: Start accepts. Automaton has 45902 states and 63110 transitions. Word has length 164 [2020-10-15 03:01:28,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:01:28,223 INFO L479 AbstractCegarLoop]: Abstraction has 45902 states and 63110 transitions. [2020-10-15 03:01:28,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:01:28,223 INFO L276 IsEmpty]: Start isEmpty. Operand 45902 states and 63110 transitions. [2020-10-15 03:01:28,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-15 03:01:28,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:01:28,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:01:28,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:01:28,281 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:01:28,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:01:28,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1289980721, now seen corresponding path program 1 times [2020-10-15 03:01:28,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:01:28,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45125245] [2020-10-15 03:01:28,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:01:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:28,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:28,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:28,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:28,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:28,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:28,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:28,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:29,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:33,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:33,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-15 03:01:33,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:01:33,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 03:01:33,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:33,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:33,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:01:33,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:01:33,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-15 03:01:33,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:33,732 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 03:01:33,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:33,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:33,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:33,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:33,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:33,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:01:33,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:33,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:33,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:01:33,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:33,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:01:33,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:33,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45125245] [2020-10-15 03:01:33,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:33,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:01:33,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734803587] [2020-10-15 03:01:33,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:01:33,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:33,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:01:33,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:01:33,787 INFO L87 Difference]: Start difference. First operand 45902 states and 63110 transitions. Second operand 5 states. [2020-10-15 03:01:34,107 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-15 03:01:39,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:01:39,505 INFO L93 Difference]: Finished difference Result 79569 states and 109282 transitions. [2020-10-15 03:01:39,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 03:01:39,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-10-15 03:01:39,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:01:39,567 INFO L225 Difference]: With dead ends: 79569 [2020-10-15 03:01:39,567 INFO L226 Difference]: Without dead ends: 45932 [2020-10-15 03:01:39,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:01:39,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45932 states. [2020-10-15 03:01:44,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45932 to 45902. [2020-10-15 03:01:44,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45902 states. [2020-10-15 03:01:44,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45902 states to 45902 states and 62767 transitions. [2020-10-15 03:01:44,152 INFO L78 Accepts]: Start accepts. Automaton has 45902 states and 62767 transitions. Word has length 164 [2020-10-15 03:01:44,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:01:44,153 INFO L479 AbstractCegarLoop]: Abstraction has 45902 states and 62767 transitions. [2020-10-15 03:01:44,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:01:44,153 INFO L276 IsEmpty]: Start isEmpty. Operand 45902 states and 62767 transitions. [2020-10-15 03:01:44,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-15 03:01:44,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:01:44,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:01:44,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:01:44,175 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:01:44,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:01:44,175 INFO L82 PathProgramCache]: Analyzing trace with hash 472727841, now seen corresponding path program 1 times [2020-10-15 03:01:44,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:01:44,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201195313] [2020-10-15 03:01:44,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:01:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:44,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:44,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:44,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:44,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:48,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:49,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:49,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:49,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-15 03:01:49,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:01:49,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 03:01:49,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:49,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:49,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 03:01:49,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:01:49,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-15 03:01:49,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:50,157 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 31 [2020-10-15 03:01:50,609 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 03:01:50,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:50,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:50,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:50,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:50,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:50,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:01:50,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:50,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:50,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:01:50,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:50,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:01:50,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:50,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:50,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201195313] [2020-10-15 03:01:50,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:50,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-15 03:01:50,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604047939] [2020-10-15 03:01:50,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 03:01:50,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:50,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 03:01:50,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:01:50,766 INFO L87 Difference]: Start difference. First operand 45902 states and 62767 transitions. Second operand 16 states. [2020-10-15 03:01:51,128 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-15 03:01:51,714 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-15 03:01:52,343 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-15 03:01:52,871 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-15 03:01:53,203 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-10-15 03:01:53,422 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-15 03:01:53,584 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-10-15 03:01:55,676 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-10-15 03:01:56,070 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-10-15 03:01:56,545 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2020-10-15 03:01:56,832 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2020-10-15 03:01:57,361 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2020-10-15 03:01:57,610 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2020-10-15 03:01:57,949 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2020-10-15 03:01:58,275 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2020-10-15 03:01:59,150 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2020-10-15 03:01:59,927 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2020-10-15 03:02:00,335 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2020-10-15 03:02:01,012 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2020-10-15 03:02:02,050 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-15 03:02:02,443 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-10-15 03:02:03,562 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-15 03:02:03,939 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2020-10-15 03:02:04,393 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2020-10-15 03:02:04,641 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-10-15 03:02:04,957 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2020-10-15 03:02:05,395 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-10-15 03:02:06,024 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2020-10-15 03:02:06,421 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-10-15 03:02:07,095 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2020-10-15 03:02:07,570 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2020-10-15 03:02:12,012 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2020-10-15 03:02:12,309 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-10-15 03:02:13,229 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-10-15 03:02:14,212 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-10-15 03:02:14,606 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2020-10-15 03:02:15,414 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-10-15 03:02:29,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:02:29,674 INFO L93 Difference]: Finished difference Result 203320 states and 296684 transitions. [2020-10-15 03:02:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-15 03:02:29,676 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 165 [2020-10-15 03:02:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:02:29,976 INFO L225 Difference]: With dead ends: 203320 [2020-10-15 03:02:29,976 INFO L226 Difference]: Without dead ends: 182928 [2020-10-15 03:02:30,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1023 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=690, Invalid=3216, Unknown=0, NotChecked=0, Total=3906 [2020-10-15 03:02:30,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182928 states. [2020-10-15 03:02:40,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182928 to 62707. [2020-10-15 03:02:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62707 states. [2020-10-15 03:02:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62707 states to 62707 states and 86656 transitions. [2020-10-15 03:02:40,849 INFO L78 Accepts]: Start accepts. Automaton has 62707 states and 86656 transitions. Word has length 165 [2020-10-15 03:02:40,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:02:40,850 INFO L479 AbstractCegarLoop]: Abstraction has 62707 states and 86656 transitions. [2020-10-15 03:02:40,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 03:02:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 62707 states and 86656 transitions. [2020-10-15 03:02:40,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-15 03:02:40,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:02:40,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:02:40,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 03:02:40,880 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:02:40,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:02:40,880 INFO L82 PathProgramCache]: Analyzing trace with hash -731480439, now seen corresponding path program 1 times [2020-10-15 03:02:40,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:02:40,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758870906] [2020-10-15 03:02:40,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:02:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:02:40,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:41,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:41,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:41,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:45,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:02:45,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-15 03:02:45,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 03:02:45,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-15 03:02:45,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:02:45,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:02:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 03:02:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-15 03:02:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-15 03:02:45,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0