/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/eca-rers2012/Problem14_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 21:38:57,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 21:38:57,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 21:38:57,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 21:38:57,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 21:38:57,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 21:38:57,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 21:38:57,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 21:38:57,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 21:38:57,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 21:38:57,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 21:38:57,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 21:38:57,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 21:38:57,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 21:38:57,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 21:38:57,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 21:38:57,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 21:38:57,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 21:38:57,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 21:38:57,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 21:38:57,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 21:38:57,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 21:38:57,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 21:38:57,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 21:38:57,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 21:38:57,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 21:38:57,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 21:38:57,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 21:38:57,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 21:38:57,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 21:38:57,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 21:38:57,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 21:38:57,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 21:38:57,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 21:38:57,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 21:38:57,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 21:38:57,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 21:38:57,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 21:38:57,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 21:38:57,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 21:38:57,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 21:38:57,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 21:38:57,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 21:38:57,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 21:38:57,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 21:38:57,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 21:38:57,831 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 21:38:57,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 21:38:57,832 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 21:38:57,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 21:38:57,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 21:38:57,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 21:38:57,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 21:38:57,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 21:38:57,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 21:38:57,834 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 21:38:57,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 21:38:57,836 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 21:38:57,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 21:38:57,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 21:38:57,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 21:38:57,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 21:38:57,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 21:38:57,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 21:38:57,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 21:38:57,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 21:38:57,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 21:38:57,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 21:38:57,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 21:38:57,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 21:38:57,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 21:38:57,840 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; [2020-10-14 21:38:58,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 21:38:58,207 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 21:38:58,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 21:38:58,214 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 21:38:58,214 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 21:38:58,215 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label04.c [2020-10-14 21:38:58,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38336986d/f68f5f6f0e53468397c505234f084dd4/FLAGe908c7e79 [2020-10-14 21:38:59,004 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 21:38:59,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label04.c [2020-10-14 21:38:59,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38336986d/f68f5f6f0e53468397c505234f084dd4/FLAGe908c7e79 [2020-10-14 21:38:59,180 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38336986d/f68f5f6f0e53468397c505234f084dd4 [2020-10-14 21:38:59,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 21:38:59,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 21:38:59,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 21:38:59,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 21:38:59,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 21:38:59,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:38:59" (1/1) ... [2020-10-14 21:38:59,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738c85d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:38:59, skipping insertion in model container [2020-10-14 21:38:59,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:38:59" (1/1) ... [2020-10-14 21:38:59,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 21:38:59,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 21:39:00,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:39:00,195 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 21:39:00,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:39:00,648 INFO L208 MainTranslator]: Completed translation [2020-10-14 21:39:00,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:39:00 WrapperNode [2020-10-14 21:39:00,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 21:39:00,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 21:39:00,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 21:39:00,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 21:39:00,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:39:00" (1/1) ... [2020-10-14 21:39:00,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:39:00" (1/1) ... [2020-10-14 21:39:00,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:39:00" (1/1) ... [2020-10-14 21:39:00,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:39:00" (1/1) ... [2020-10-14 21:39:00,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:39:00" (1/1) ... [2020-10-14 21:39:00,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:39:00" (1/1) ... [2020-10-14 21:39:00,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:39:00" (1/1) ... [2020-10-14 21:39:00,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 21:39:00,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 21:39:00,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 21:39:00,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 21:39:00,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:39:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 21:39:01,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 21:39:01,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 21:39:01,164 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 21:39:01,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 21:39:01,164 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 21:39:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 21:39:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 21:39:01,166 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 21:39:01,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 21:39:01,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 21:39:01,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 21:39:02,859 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 21:39:02,860 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 21:39:02,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:39:02 BoogieIcfgContainer [2020-10-14 21:39:02,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 21:39:02,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 21:39:02,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 21:39:02,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 21:39:02,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:38:59" (1/3) ... [2020-10-14 21:39:02,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3a8132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:39:02, skipping insertion in model container [2020-10-14 21:39:02,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:39:00" (2/3) ... [2020-10-14 21:39:02,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3a8132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:39:02, skipping insertion in model container [2020-10-14 21:39:02,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:39:02" (3/3) ... [2020-10-14 21:39:02,889 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label04.c [2020-10-14 21:39:02,902 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 21:39:02,917 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 21:39:02,934 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 21:39:02,973 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 21:39:02,973 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 21:39:02,973 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 21:39:02,974 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 21:39:02,974 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 21:39:02,974 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 21:39:02,974 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 21:39:02,974 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 21:39:03,000 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-14 21:39:03,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 21:39:03,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:03,012 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] [2020-10-14 21:39:03,012 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:03,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:03,020 INFO L82 PathProgramCache]: Analyzing trace with hash 111539867, now seen corresponding path program 1 times [2020-10-14 21:39:03,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:03,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319690734] [2020-10-14 21:39:03,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:03,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:03,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:03,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 21:39:03,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:03,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-10-14 21:39:03,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:03,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:03,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:39:03,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:39:03,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 21:39:03,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:39:03,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:03,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:03,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:03,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:03,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:03,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 21:39:03,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:03,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:39:03,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:39:03,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319690734] [2020-10-14 21:39:03,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:39:03,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 21:39:03,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388780650] [2020-10-14 21:39:03,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:39:03,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:03,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:39:03,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:39:03,995 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-10-14 21:39:05,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:05,943 INFO L93 Difference]: Finished difference Result 698 states and 1241 transitions. [2020-10-14 21:39:05,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:39:05,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-10-14 21:39:05,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:05,967 INFO L225 Difference]: With dead ends: 698 [2020-10-14 21:39:05,967 INFO L226 Difference]: Without dead ends: 380 [2020-10-14 21:39:05,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:39:05,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-14 21:39:06,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-14 21:39:06,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-14 21:39:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 604 transitions. [2020-10-14 21:39:06,072 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 604 transitions. Word has length 58 [2020-10-14 21:39:06,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:06,073 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 604 transitions. [2020-10-14 21:39:06,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:39:06,074 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 604 transitions. [2020-10-14 21:39:06,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-14 21:39:06,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:06,081 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:06,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 21:39:06,082 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:06,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:06,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1919081915, now seen corresponding path program 1 times [2020-10-14 21:39:06,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:06,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929575987] [2020-10-14 21:39:06,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:06,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:06,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:06,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:07,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:07,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 21:39:07,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:39:07,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1151 [2020-10-14 21:39:07,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:07,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:07,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:39:07,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:39:07,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:39:07,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:39:07,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:07,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:07,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:07,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:07,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:07,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 21:39:07,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:07,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:07,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:07,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:07,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:39:07,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:07,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:07,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:07,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:07,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 21:39:07,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:07,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 21:39:07,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:07,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:07,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:07,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 21:39:07,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:39:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:39:07,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929575987] [2020-10-14 21:39:07,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:39:07,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:39:07,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97607378] [2020-10-14 21:39:07,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:39:07,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:07,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:39:07,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:39:07,663 INFO L87 Difference]: Start difference. First operand 374 states and 604 transitions. Second operand 7 states. [2020-10-14 21:39:09,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:09,819 INFO L93 Difference]: Finished difference Result 946 states and 1543 transitions. [2020-10-14 21:39:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:39:09,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-10-14 21:39:09,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:09,833 INFO L225 Difference]: With dead ends: 946 [2020-10-14 21:39:09,834 INFO L226 Difference]: Without dead ends: 578 [2020-10-14 21:39:09,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:39:09,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-10-14 21:39:09,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 564. [2020-10-14 21:39:09,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-10-14 21:39:09,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 829 transitions. [2020-10-14 21:39:09,876 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 829 transitions. Word has length 127 [2020-10-14 21:39:09,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:09,877 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 829 transitions. [2020-10-14 21:39:09,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:39:09,877 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 829 transitions. [2020-10-14 21:39:09,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-14 21:39:09,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:09,881 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:09,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 21:39:09,882 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:09,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:09,882 INFO L82 PathProgramCache]: Analyzing trace with hash -36826466, now seen corresponding path program 1 times [2020-10-14 21:39:09,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:09,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055377414] [2020-10-14 21:39:09,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:09,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:09,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:10,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:10,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:11,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:11,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 21:39:11,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:39:11,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1239 [2020-10-14 21:39:11,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:11,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:39:11,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:39:11,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 21:39:11,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:11,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:11,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:11,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:11,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:11,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:11,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 21:39:11,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:11,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:11,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:11,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:11,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:39:11,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:11,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:11,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:11,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:11,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 21:39:11,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:11,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 21:39:11,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:11,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:39:11,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:11,415 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 21:39:11,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055377414] [2020-10-14 21:39:11,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:11,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:39:11,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466616294] [2020-10-14 21:39:11,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:39:11,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:11,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:39:11,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:39:11,419 INFO L87 Difference]: Start difference. First operand 564 states and 829 transitions. Second operand 6 states. [2020-10-14 21:39:13,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:13,419 INFO L93 Difference]: Finished difference Result 1700 states and 2564 transitions. [2020-10-14 21:39:13,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:39:13,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-10-14 21:39:13,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:13,434 INFO L225 Difference]: With dead ends: 1700 [2020-10-14 21:39:13,434 INFO L226 Difference]: Without dead ends: 1142 [2020-10-14 21:39:13,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:39:13,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-10-14 21:39:13,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 946. [2020-10-14 21:39:13,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 946 states. [2020-10-14 21:39:13,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1301 transitions. [2020-10-14 21:39:13,520 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1301 transitions. Word has length 128 [2020-10-14 21:39:13,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:13,521 INFO L479 AbstractCegarLoop]: Abstraction has 946 states and 1301 transitions. [2020-10-14 21:39:13,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:39:13,522 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1301 transitions. [2020-10-14 21:39:13,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-14 21:39:13,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:13,547 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:13,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 21:39:13,547 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:13,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:13,548 INFO L82 PathProgramCache]: Analyzing trace with hash 313899057, now seen corresponding path program 1 times [2020-10-14 21:39:13,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:13,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996789673] [2020-10-14 21:39:13,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:13,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:13,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:13,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:15,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:15,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 21:39:15,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:39:15,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2178 [2020-10-14 21:39:15,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:15,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:15,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:39:15,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:39:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 21:39:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 21:39:15,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:15,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:15,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:15,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:15,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:15,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 21:39:15,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:15,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:15,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:15,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:15,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:39:15,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:15,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:15,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:16,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:16,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:39:16,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:16,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 21:39:16,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:16,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:16,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:39:16,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:39:16,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996789673] [2020-10-14 21:39:16,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:39:16,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 21:39:16,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253919284] [2020-10-14 21:39:16,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:39:16,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:16,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:39:16,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:39:16,462 INFO L87 Difference]: Start difference. First operand 946 states and 1301 transitions. Second operand 8 states. [2020-10-14 21:39:18,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:18,621 INFO L93 Difference]: Finished difference Result 2296 states and 3115 transitions. [2020-10-14 21:39:18,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:39:18,622 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-10-14 21:39:18,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:18,633 INFO L225 Difference]: With dead ends: 2296 [2020-10-14 21:39:18,634 INFO L226 Difference]: Without dead ends: 1356 [2020-10-14 21:39:18,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:39:18,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2020-10-14 21:39:18,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 1326. [2020-10-14 21:39:18,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2020-10-14 21:39:18,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1751 transitions. [2020-10-14 21:39:18,709 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1751 transitions. Word has length 153 [2020-10-14 21:39:18,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:18,711 INFO L479 AbstractCegarLoop]: Abstraction has 1326 states and 1751 transitions. [2020-10-14 21:39:18,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:39:18,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1751 transitions. [2020-10-14 21:39:18,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-10-14 21:39:18,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:18,719 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:18,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 21:39:18,720 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:18,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:18,721 INFO L82 PathProgramCache]: Analyzing trace with hash 228440648, now seen corresponding path program 1 times [2020-10-14 21:39:18,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:18,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697505898] [2020-10-14 21:39:18,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:18,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:18,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:20,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:20,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:22,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:22,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:22,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-14 21:39:22,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:39:22,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4056 [2020-10-14 21:39:22,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:22,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:22,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:39:22,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:39:22,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 21:39:22,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:22,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:22,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:22,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:22,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:22,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:22,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:39:22,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:22,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:22,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:22,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:22,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:39:22,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:22,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:22,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:23,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:23,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 21:39:23,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:23,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 21:39:23,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:23,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:23,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:23,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:23,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 21:39:23,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:23,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-14 21:39:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:23,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:23,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:23,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 21:39:23,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:23,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:39:23,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:23,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:23,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:23,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 21:39:23,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:23,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 102 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 21:39:23,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697505898] [2020-10-14 21:39:23,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:23,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:39:23,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136496552] [2020-10-14 21:39:23,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:39:23,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:23,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:39:23,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:39:23,490 INFO L87 Difference]: Start difference. First operand 1326 states and 1751 transitions. Second operand 7 states. [2020-10-14 21:39:25,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:25,618 INFO L93 Difference]: Finished difference Result 3088 states and 4149 transitions. [2020-10-14 21:39:25,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:39:25,619 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 261 [2020-10-14 21:39:25,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:25,637 INFO L225 Difference]: With dead ends: 3088 [2020-10-14 21:39:25,637 INFO L226 Difference]: Without dead ends: 1768 [2020-10-14 21:39:25,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:39:25,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2020-10-14 21:39:25,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1694. [2020-10-14 21:39:25,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1694 states. [2020-10-14 21:39:25,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2140 transitions. [2020-10-14 21:39:25,719 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2140 transitions. Word has length 261 [2020-10-14 21:39:25,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:25,720 INFO L479 AbstractCegarLoop]: Abstraction has 1694 states and 2140 transitions. [2020-10-14 21:39:25,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:39:25,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2140 transitions. [2020-10-14 21:39:25,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-10-14 21:39:25,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:25,728 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:25,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 21:39:25,728 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:25,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:25,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1559549727, now seen corresponding path program 1 times [2020-10-14 21:39:25,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:25,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296272672] [2020-10-14 21:39:25,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:25,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:25,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:26,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:26,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:27,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:27,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:30,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:30,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 359 [2020-10-14 21:39:30,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:39:30,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4261 [2020-10-14 21:39:30,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:30,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:30,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:30,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-14 21:39:30,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 21:39:30,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:30,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:30,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:30,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:30,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:30,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:30,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:39:30,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:30,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:30,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:30,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:30,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:30,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:30,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:30,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:30,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:30,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:39:30,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:30,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 21:39:30,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:30,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:30,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:30,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:30,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:39:30,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:30,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 21:39:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:30,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:30,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:30,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 21:39:30,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:30,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-14 21:39:30,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:30,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:30,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:30,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:30,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 21:39:30,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:30,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-14 21:39:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:30,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:30,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:30,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 21:39:30,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:30,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:39:30,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:30,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:30,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:30,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 21:39:30,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:30,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:30,968 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 238 proven. 69 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-14 21:39:30,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296272672] [2020-10-14 21:39:30,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:30,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:39:30,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891815608] [2020-10-14 21:39:30,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:39:30,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:30,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:39:30,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:39:30,971 INFO L87 Difference]: Start difference. First operand 1694 states and 2140 transitions. Second operand 7 states. [2020-10-14 21:39:33,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:33,233 INFO L93 Difference]: Finished difference Result 3406 states and 4393 transitions. [2020-10-14 21:39:33,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:39:33,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 345 [2020-10-14 21:39:33,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:33,244 INFO L225 Difference]: With dead ends: 3406 [2020-10-14 21:39:33,244 INFO L226 Difference]: Without dead ends: 1704 [2020-10-14 21:39:33,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:39:33,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2020-10-14 21:39:33,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1498. [2020-10-14 21:39:33,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2020-10-14 21:39:33,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 1717 transitions. [2020-10-14 21:39:33,294 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 1717 transitions. Word has length 345 [2020-10-14 21:39:33,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:33,295 INFO L479 AbstractCegarLoop]: Abstraction has 1498 states and 1717 transitions. [2020-10-14 21:39:33,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:39:33,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 1717 transitions. [2020-10-14 21:39:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-14 21:39:33,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:33,302 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:33,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 21:39:33,302 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:33,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:33,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1935089194, now seen corresponding path program 1 times [2020-10-14 21:39:33,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:33,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579606041] [2020-10-14 21:39:33,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:33,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:33,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:33,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 364 [2020-10-14 21:39:33,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:33,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-14 21:39:33,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:33,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:33,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:33,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-14 21:39:33,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 21:39:33,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:33,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:33,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:33,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:33,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:33,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:33,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:39:33,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:33,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:33,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:33,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:33,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:33,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:39:33,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:33,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:33,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:33,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:39:33,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:33,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:39:33,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:33,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:33,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:33,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:33,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:33,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:34,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:39:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:34,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:34,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:34,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:39:34,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:34,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 21:39:34,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:34,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:34,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:34,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:34,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:39:34,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:34,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:39:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:34,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:34,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:34,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:39:34,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:34,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 21:39:34,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:34,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:34,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:34,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:39:34,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:34,576 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 298 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-14 21:39:34,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579606041] [2020-10-14 21:39:34,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:34,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:39:34,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886699285] [2020-10-14 21:39:34,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:39:34,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:34,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:39:34,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:39:34,581 INFO L87 Difference]: Start difference. First operand 1498 states and 1717 transitions. Second operand 7 states. [2020-10-14 21:39:36,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:36,353 INFO L93 Difference]: Finished difference Result 2830 states and 3332 transitions. [2020-10-14 21:39:36,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:39:36,359 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 350 [2020-10-14 21:39:36,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:36,370 INFO L225 Difference]: With dead ends: 2830 [2020-10-14 21:39:36,370 INFO L226 Difference]: Without dead ends: 1704 [2020-10-14 21:39:36,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:39:36,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2020-10-14 21:39:36,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1686. [2020-10-14 21:39:36,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1686 states. [2020-10-14 21:39:36,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 1924 transitions. [2020-10-14 21:39:36,440 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 1924 transitions. Word has length 350 [2020-10-14 21:39:36,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:36,442 INFO L479 AbstractCegarLoop]: Abstraction has 1686 states and 1924 transitions. [2020-10-14 21:39:36,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:39:36,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 1924 transitions. [2020-10-14 21:39:36,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2020-10-14 21:39:36,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:36,455 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:36,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 21:39:36,456 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:36,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:36,457 INFO L82 PathProgramCache]: Analyzing trace with hash 235967438, now seen corresponding path program 1 times [2020-10-14 21:39:36,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:36,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871477258] [2020-10-14 21:39:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:36,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:36,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:37,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:37,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:38,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:39,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:41,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:41,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 464 [2020-10-14 21:39:41,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:39:41,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-14 21:39:41,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:41,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:41,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 21:39:41,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:39:41,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 458 [2020-10-14 21:39:41,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:39:41,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:41,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:41,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:41,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:41,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:41,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:39:41,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:41,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:39:41,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:41,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:41,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:41,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:41,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:41,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:39:41,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:39:41,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 21:39:41,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:41,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:41,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:41,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:41,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 21:39:41,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:42,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:39:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:42,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:42,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:42,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:42,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:39:42,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:39:42,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 21:39:42,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:42,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:42,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:42,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:39:42,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:42,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:39:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:42,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:42,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:42,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:42,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 21:39:42,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:39:42,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-14 21:39:42,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:42,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:42,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 21:39:42,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:42,758 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2020-10-14 21:39:42,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871477258] [2020-10-14 21:39:42,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:42,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:39:42,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761103356] [2020-10-14 21:39:42,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:39:42,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:42,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:39:42,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:39:42,761 INFO L87 Difference]: Start difference. First operand 1686 states and 1924 transitions. Second operand 6 states. [2020-10-14 21:39:44,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:44,971 INFO L93 Difference]: Finished difference Result 4114 states and 4998 transitions. [2020-10-14 21:39:44,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:39:44,973 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 450 [2020-10-14 21:39:44,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:45,006 INFO L225 Difference]: With dead ends: 4114 [2020-10-14 21:39:45,007 INFO L226 Difference]: Without dead ends: 2800 [2020-10-14 21:39:45,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:39:45,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2020-10-14 21:39:45,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2240. [2020-10-14 21:39:45,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2240 states. [2020-10-14 21:39:45,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 2554 transitions. [2020-10-14 21:39:45,092 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 2554 transitions. Word has length 450 [2020-10-14 21:39:45,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:45,093 INFO L479 AbstractCegarLoop]: Abstraction has 2240 states and 2554 transitions. [2020-10-14 21:39:45,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:39:45,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 2554 transitions. [2020-10-14 21:39:45,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2020-10-14 21:39:45,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:45,105 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:45,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 21:39:45,105 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:45,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:45,106 INFO L82 PathProgramCache]: Analyzing trace with hash 2111869795, now seen corresponding path program 1 times [2020-10-14 21:39:45,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:45,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067497193] [2020-10-14 21:39:45,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:45,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:45,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:45,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:46,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:49,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:50,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:50,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:50,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472 [2020-10-14 21:39:50,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:39:50,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-14 21:39:50,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:50,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:39:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-14 21:39:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 184 [2020-10-14 21:39:50,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:50,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:50,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:50,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:50,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:50,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:50,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:39:50,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:50,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:50,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:50,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:50,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:50,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:50,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:50,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:39:50,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:50,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:39:50,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:50,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:50,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:50,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:50,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:50,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:50,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:39:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:50,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:50,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:50,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:39:50,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:50,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 21:39:50,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:50,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:50,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:50,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:50,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:39:50,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:50,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:39:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:50,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:50,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:50,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:50,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:39:50,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:39:50,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 21:39:50,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:50,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:50,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:50,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:50,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:39:50,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:50,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-14 21:39:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:50,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:50,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:50,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:39:50,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:50,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 21:39:50,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:50,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:39:50,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:51,151 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 482 proven. 4 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2020-10-14 21:39:51,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067497193] [2020-10-14 21:39:51,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:39:51,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:39:51,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393536615] [2020-10-14 21:39:51,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:39:51,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:39:51,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:39:51,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:39:51,154 INFO L87 Difference]: Start difference. First operand 2240 states and 2554 transitions. Second operand 8 states. [2020-10-14 21:39:53,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:39:53,637 INFO L93 Difference]: Finished difference Result 5244 states and 6256 transitions. [2020-10-14 21:39:53,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 21:39:53,639 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 456 [2020-10-14 21:39:53,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:39:53,654 INFO L225 Difference]: With dead ends: 5244 [2020-10-14 21:39:53,655 INFO L226 Difference]: Without dead ends: 3186 [2020-10-14 21:39:53,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-10-14 21:39:53,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2020-10-14 21:39:53,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 3170. [2020-10-14 21:39:53,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3170 states. [2020-10-14 21:39:53,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 3503 transitions. [2020-10-14 21:39:53,751 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 3503 transitions. Word has length 456 [2020-10-14 21:39:53,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:39:53,752 INFO L479 AbstractCegarLoop]: Abstraction has 3170 states and 3503 transitions. [2020-10-14 21:39:53,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:39:53,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 3503 transitions. [2020-10-14 21:39:53,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2020-10-14 21:39:53,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:39:53,763 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:39:53,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 21:39:53,763 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:39:53,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:39:53,764 INFO L82 PathProgramCache]: Analyzing trace with hash -2142196595, now seen corresponding path program 1 times [2020-10-14 21:39:53,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:39:53,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887927419] [2020-10-14 21:39:53,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:39:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:53,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:54,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:55,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:56,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:57,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:58,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:58,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 611 [2020-10-14 21:39:58,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:39:58,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 21:39:58,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:58,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:58,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:39:58,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-14 21:39:58,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-14 21:39:58,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:39:59,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:39:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:59,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:59,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:59,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:39:59,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:59,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:39:59,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:59,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:59,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:59,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:59,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:39:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:59,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:59,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:59,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:39:59,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:59,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:39:59,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:59,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:59,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:39:59,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:39:59,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:59,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:39:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:59,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:59,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:59,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:39:59,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:39:59,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 21:39:59,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:59,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:39:59,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:39:59,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:39:59,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:59,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:39:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:59,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:59,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:59,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:59,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:39:59,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:39:59,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-14 21:39:59,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:39:59,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:39:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:39:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:39:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 21:39:59,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:39:59,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-14 21:39:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:39:59,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:39:59,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:39:59,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 21:40:00,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:00,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-14 21:40:00,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:00,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:00,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:00,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:00,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 21:40:00,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:00,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 21:40:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:00,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:00,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:00,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:40:00,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:00,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:40:00,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:00,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:00,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 21:40:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:00,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:00,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 803 proven. 144 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-10-14 21:40:00,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887927419] [2020-10-14 21:40:00,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:00,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 21:40:00,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476985186] [2020-10-14 21:40:00,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 21:40:00,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:00,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 21:40:00,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:40:00,465 INFO L87 Difference]: Start difference. First operand 3170 states and 3503 transitions. Second operand 10 states. [2020-10-14 21:40:03,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:03,254 INFO L93 Difference]: Finished difference Result 6196 states and 6902 transitions. [2020-10-14 21:40:03,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 21:40:03,257 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 593 [2020-10-14 21:40:03,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:03,275 INFO L225 Difference]: With dead ends: 6196 [2020-10-14 21:40:03,275 INFO L226 Difference]: Without dead ends: 3398 [2020-10-14 21:40:03,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 21:40:03,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3398 states. [2020-10-14 21:40:03,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3398 to 3356. [2020-10-14 21:40:03,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3356 states. [2020-10-14 21:40:03,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 3690 transitions. [2020-10-14 21:40:03,396 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 3690 transitions. Word has length 593 [2020-10-14 21:40:03,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:03,397 INFO L479 AbstractCegarLoop]: Abstraction has 3356 states and 3690 transitions. [2020-10-14 21:40:03,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 21:40:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 3690 transitions. [2020-10-14 21:40:03,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-10-14 21:40:03,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:03,409 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:40:03,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 21:40:03,410 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:03,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:03,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1618016074, now seen corresponding path program 1 times [2020-10-14 21:40:03,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:03,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220221830] [2020-10-14 21:40:03,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:03,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:04,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:04,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 644 [2020-10-14 21:40:04,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 791 [2020-10-14 21:40:04,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:04,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-14 21:40:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 21:40:04,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:04,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:04,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:04,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:04,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:04,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:04,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:40:04,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:04,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:04,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:04,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:04,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:04,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:04,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:04,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:04,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:04,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:04,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:04,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:40:04,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:04,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:04,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:04,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:04,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:04,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:04,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:04,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:04,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:04,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:04,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:04,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:40:04,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:04,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:04,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:04,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:04,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:04,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:04,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:04,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:04,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:04,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:04,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:40:04,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:04,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:04,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:04,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:04,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:04,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:04,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:04,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:04,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:04,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:40:04,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:04,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 21:40:04,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:04,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:04,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 21:40:04,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:04,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:40:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:04,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:05,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:05,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:40:05,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:05,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:40:05,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:05,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:05,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:05,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:05,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:40:05,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:05,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1211 backedges. 550 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-14 21:40:05,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220221830] [2020-10-14 21:40:05,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:05,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:40:05,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486188971] [2020-10-14 21:40:05,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:40:05,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:05,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:40:05,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:40:05,210 INFO L87 Difference]: Start difference. First operand 3356 states and 3690 transitions. Second operand 7 states. [2020-10-14 21:40:07,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:07,883 INFO L93 Difference]: Finished difference Result 6920 states and 7766 transitions. [2020-10-14 21:40:07,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:40:07,886 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 626 [2020-10-14 21:40:07,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:07,904 INFO L225 Difference]: With dead ends: 6920 [2020-10-14 21:40:07,904 INFO L226 Difference]: Without dead ends: 3936 [2020-10-14 21:40:07,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:40:07,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2020-10-14 21:40:08,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3912. [2020-10-14 21:40:08,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3912 states. [2020-10-14 21:40:08,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3912 states to 3912 states and 4306 transitions. [2020-10-14 21:40:08,018 INFO L78 Accepts]: Start accepts. Automaton has 3912 states and 4306 transitions. Word has length 626 [2020-10-14 21:40:08,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:08,020 INFO L479 AbstractCegarLoop]: Abstraction has 3912 states and 4306 transitions. [2020-10-14 21:40:08,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:40:08,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3912 states and 4306 transitions. [2020-10-14 21:40:08,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2020-10-14 21:40:08,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:08,031 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:40:08,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 21:40:08,031 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:08,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:08,032 INFO L82 PathProgramCache]: Analyzing trace with hash -970508781, now seen corresponding path program 1 times [2020-10-14 21:40:08,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:08,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851332557] [2020-10-14 21:40:08,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:08,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:08,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 722 [2020-10-14 21:40:10,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:40:10,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1829 [2020-10-14 21:40:10,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:10,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-14 21:40:10,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:40:10,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:10,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:10,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:40:10,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:10,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:10,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:10,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:10,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:10,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:40:10,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:10,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:10,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 21:40:10,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:10,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:10,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:10,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:10,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:10,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:40:10,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:10,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:10,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:10,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:10,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:40:10,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 21:40:10,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:10,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:10,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 21:40:10,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:10,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:40:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:40:10,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 21:40:10,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:10,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:10,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 21:40:10,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:10,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-14 21:40:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:10,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:10,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:10,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:40:10,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:10,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:40:10,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:10,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 21:40:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:10,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 629 proven. 72 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2020-10-14 21:40:10,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851332557] [2020-10-14 21:40:10,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:10,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:40:10,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573018449] [2020-10-14 21:40:10,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:40:10,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:10,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:40:10,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:40:10,949 INFO L87 Difference]: Start difference. First operand 3912 states and 4306 transitions. Second operand 7 states. [2020-10-14 21:40:13,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:13,005 INFO L93 Difference]: Finished difference Result 8394 states and 9437 transitions. [2020-10-14 21:40:13,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:40:13,005 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 702 [2020-10-14 21:40:13,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:13,026 INFO L225 Difference]: With dead ends: 8394 [2020-10-14 21:40:13,027 INFO L226 Difference]: Without dead ends: 4854 [2020-10-14 21:40:13,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:40:13,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4854 states. [2020-10-14 21:40:13,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4854 to 4656. [2020-10-14 21:40:13,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4656 states. [2020-10-14 21:40:13,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 5140 transitions. [2020-10-14 21:40:13,148 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 5140 transitions. Word has length 702 [2020-10-14 21:40:13,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:13,149 INFO L479 AbstractCegarLoop]: Abstraction has 4656 states and 5140 transitions. [2020-10-14 21:40:13,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:40:13,150 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 5140 transitions. [2020-10-14 21:40:13,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 762 [2020-10-14 21:40:13,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:13,160 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:40:13,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 21:40:13,161 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:13,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:13,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1005175060, now seen corresponding path program 1 times [2020-10-14 21:40:13,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:13,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959910842] [2020-10-14 21:40:13,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:13,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:13,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:14,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:15,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 781 [2020-10-14 21:40:18,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:40:18,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 21:40:18,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:18,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-14 21:40:18,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:40:18,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:18,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:18,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:40:18,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:18,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:40:18,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:18,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:40:18,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:18,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 21:40:18,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:18,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:18,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:40:18,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:40:18,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 21:40:18,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:18,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-14 21:40:18,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-14 21:40:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:18,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:18,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:40:18,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:18,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:40:18,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:18,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:18,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:18,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 21:40:18,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:18,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:18,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-14 21:40:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:18,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:19,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:19,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 21:40:19,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:19,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:40:19,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:19,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-14 21:40:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:19,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:19,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1797 backedges. 667 proven. 186 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2020-10-14 21:40:19,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959910842] [2020-10-14 21:40:19,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:19,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:40:19,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283177151] [2020-10-14 21:40:19,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:40:19,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:19,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:40:19,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:40:19,447 INFO L87 Difference]: Start difference. First operand 4656 states and 5140 transitions. Second operand 7 states. [2020-10-14 21:40:21,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:21,255 INFO L93 Difference]: Finished difference Result 10070 states and 11318 transitions. [2020-10-14 21:40:21,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:40:21,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 761 [2020-10-14 21:40:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:21,276 INFO L225 Difference]: With dead ends: 10070 [2020-10-14 21:40:21,276 INFO L226 Difference]: Without dead ends: 5786 [2020-10-14 21:40:21,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:40:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5786 states. [2020-10-14 21:40:21,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5786 to 5756. [2020-10-14 21:40:21,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5756 states. [2020-10-14 21:40:21,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 6300 transitions. [2020-10-14 21:40:21,419 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 6300 transitions. Word has length 761 [2020-10-14 21:40:21,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:21,420 INFO L479 AbstractCegarLoop]: Abstraction has 5756 states and 6300 transitions. [2020-10-14 21:40:21,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:40:21,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 6300 transitions. [2020-10-14 21:40:21,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2020-10-14 21:40:21,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:21,433 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:40:21,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 21:40:21,433 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:21,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:21,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1559719242, now seen corresponding path program 1 times [2020-10-14 21:40:21,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:21,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887917130] [2020-10-14 21:40:21,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:21,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:22,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:22,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 819 [2020-10-14 21:40:22,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:22,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 749 [2020-10-14 21:40:22,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:22,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:22,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:22,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-14 21:40:22,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 21:40:22,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:22,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:22,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:22,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:22,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:22,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:22,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:40:22,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:22,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:22,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:22,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:22,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:22,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:22,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:22,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:22,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:40:22,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:22,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:22,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:22,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:22,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:22,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:22,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:22,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:22,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:22,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:22,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:22,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:40:22,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:22,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:22,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:22,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:22,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:22,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:22,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:22,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:22,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:22,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:22,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:22,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:40:22,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:22,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:22,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:22,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:22,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:22,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:22,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:22,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:22,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:22,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:40:22,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:22,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:40:22,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:22,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:22,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:22,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:40:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:22,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:22,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:22,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 21:40:22,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:22,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 21:40:22,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:22,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:22,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:22,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:22,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 21:40:22,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:22,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-14 21:40:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:22,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:22,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:22,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:40:22,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:22,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 21:40:22,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:22,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:22,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:22,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:22,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:40:22,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 676 proven. 2 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2020-10-14 21:40:23,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887917130] [2020-10-14 21:40:23,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:23,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:40:23,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252173526] [2020-10-14 21:40:23,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:40:23,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:23,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:40:23,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:40:23,331 INFO L87 Difference]: Start difference. First operand 5756 states and 6300 transitions. Second operand 7 states. [2020-10-14 21:40:25,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:25,324 INFO L93 Difference]: Finished difference Result 11332 states and 12475 transitions. [2020-10-14 21:40:25,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:40:25,328 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 799 [2020-10-14 21:40:25,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:25,366 INFO L225 Difference]: With dead ends: 11332 [2020-10-14 21:40:25,366 INFO L226 Difference]: Without dead ends: 5948 [2020-10-14 21:40:25,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:40:25,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2020-10-14 21:40:25,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 5938. [2020-10-14 21:40:25,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5938 states. [2020-10-14 21:40:25,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5938 states to 5938 states and 6480 transitions. [2020-10-14 21:40:25,509 INFO L78 Accepts]: Start accepts. Automaton has 5938 states and 6480 transitions. Word has length 799 [2020-10-14 21:40:25,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:25,511 INFO L479 AbstractCegarLoop]: Abstraction has 5938 states and 6480 transitions. [2020-10-14 21:40:25,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:40:25,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5938 states and 6480 transitions. [2020-10-14 21:40:25,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2020-10-14 21:40:25,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:25,527 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:40:25,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 21:40:25,527 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:25,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:25,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1413186048, now seen corresponding path program 1 times [2020-10-14 21:40:25,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:25,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914245141] [2020-10-14 21:40:25,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:25,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:26,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 864 [2020-10-14 21:40:28,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:40:28,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2328 [2020-10-14 21:40:28,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:40:28,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-14 21:40:28,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 21:40:28,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:28,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:28,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:28,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:40:28,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:28,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:28,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:28,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:28,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:28,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:28,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:40:28,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:28,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:28,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:28,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:28,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:40:28,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:28,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:28,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:28,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:28,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:40:28,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:28,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:28,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:28,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:28,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:40:28,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:28,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:40:28,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:28,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:28,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:28,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:28,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:40:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:40:28,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:28,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 21:40:28,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:28,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:28,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:40:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:40:28,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:28,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:40:28,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:40:28,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:28,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:40:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:28,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:28,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:28,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 21:40:28,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:28,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 21:40:28,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:28,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:28,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:40:28,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:28,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 21:40:28,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:29,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2329 backedges. 935 proven. 35 refuted. 0 times theorem prover too weak. 1359 trivial. 0 not checked. [2020-10-14 21:40:29,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914245141] [2020-10-14 21:40:29,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:29,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:40:29,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138343320] [2020-10-14 21:40:29,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:40:29,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:29,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:40:29,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:40:29,298 INFO L87 Difference]: Start difference. First operand 5938 states and 6480 transitions. Second operand 8 states. [2020-10-14 21:40:31,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:31,559 INFO L93 Difference]: Finished difference Result 12489 states and 13863 transitions. [2020-10-14 21:40:31,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:40:31,565 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 842 [2020-10-14 21:40:31,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:31,592 INFO L225 Difference]: With dead ends: 12489 [2020-10-14 21:40:31,592 INFO L226 Difference]: Without dead ends: 6888 [2020-10-14 21:40:31,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:40:31,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6888 states. [2020-10-14 21:40:31,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6888 to 6872. [2020-10-14 21:40:31,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6872 states. [2020-10-14 21:40:31,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6872 states to 6872 states and 7665 transitions. [2020-10-14 21:40:31,773 INFO L78 Accepts]: Start accepts. Automaton has 6872 states and 7665 transitions. Word has length 842 [2020-10-14 21:40:31,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:31,775 INFO L479 AbstractCegarLoop]: Abstraction has 6872 states and 7665 transitions. [2020-10-14 21:40:31,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:40:31,775 INFO L276 IsEmpty]: Start isEmpty. Operand 6872 states and 7665 transitions. [2020-10-14 21:40:31,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2020-10-14 21:40:31,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:31,792 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:40:31,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 21:40:31,793 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:31,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:31,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1909915855, now seen corresponding path program 1 times [2020-10-14 21:40:31,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:31,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636115199] [2020-10-14 21:40:31,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:32,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:33,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:33,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:33,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 897 [2020-10-14 21:40:33,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:40:33,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1917 [2020-10-14 21:40:33,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:33,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:33,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:40:33,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-14 21:40:33,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-10-14 21:40:33,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:34,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:34,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:34,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:34,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:34,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:34,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:40:34,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:34,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:34,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:34,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:34,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:34,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:34,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:34,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:34,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:40:34,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:34,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:34,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:34,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:34,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:34,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:34,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:34,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:34,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:40:34,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:34,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:34,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:34,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:34,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:34,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:34,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:34,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:34,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 21:40:34,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:34,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:34,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:34,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:34,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:34,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:34,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:40:34,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:34,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:40:34,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:34,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:34,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:34,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:34,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:34,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:34,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:40:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:34,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:34,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:34,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:40:34,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:34,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 21:40:34,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:34,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:34,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:34,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:34,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:34,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:34,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:40:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:34,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:34,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:34,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:40:34,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:34,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 21:40:34,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:34,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:34,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:40:34,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:34,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:40:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:34,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:34,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:34,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 21:40:34,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:34,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 21:40:34,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:34,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:40:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-14 21:40:34,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:35,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2365 backedges. 971 proven. 35 refuted. 0 times theorem prover too weak. 1359 trivial. 0 not checked. [2020-10-14 21:40:35,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636115199] [2020-10-14 21:40:35,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:35,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:40:35,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38207296] [2020-10-14 21:40:35,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:40:35,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:35,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:40:35,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:40:35,279 INFO L87 Difference]: Start difference. First operand 6872 states and 7665 transitions. Second operand 8 states. [2020-10-14 21:40:37,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:37,562 INFO L93 Difference]: Finished difference Result 13427 states and 15034 transitions. [2020-10-14 21:40:37,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:40:37,564 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 875 [2020-10-14 21:40:37,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:37,601 INFO L225 Difference]: With dead ends: 13427 [2020-10-14 21:40:37,602 INFO L226 Difference]: Without dead ends: 6894 [2020-10-14 21:40:37,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:40:37,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6894 states. [2020-10-14 21:40:37,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6894 to 6878. [2020-10-14 21:40:37,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6878 states. [2020-10-14 21:40:37,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6878 states to 6878 states and 7661 transitions. [2020-10-14 21:40:37,789 INFO L78 Accepts]: Start accepts. Automaton has 6878 states and 7661 transitions. Word has length 875 [2020-10-14 21:40:37,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:37,791 INFO L479 AbstractCegarLoop]: Abstraction has 6878 states and 7661 transitions. [2020-10-14 21:40:37,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:40:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 6878 states and 7661 transitions. [2020-10-14 21:40:37,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 877 [2020-10-14 21:40:37,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:37,814 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:40:37,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 21:40:37,815 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:37,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:37,816 INFO L82 PathProgramCache]: Analyzing trace with hash 453313820, now seen corresponding path program 1 times [2020-10-14 21:40:37,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:37,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292800973] [2020-10-14 21:40:37,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:38,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:39,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:42,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:42,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 898 [2020-10-14 21:40:42,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:40:42,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4614 [2020-10-14 21:40:42,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:42,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:40:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-14 21:40:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-10-14 21:40:42,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:42,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:42,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:42,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:42,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:42,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:42,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:40:42,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:42,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:42,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:42,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:42,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:42,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:42,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:42,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:42,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:42,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:42,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:42,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:40:42,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:42,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:42,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:42,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:42,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:42,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:42,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:42,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:42,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:40:42,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:42,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:42,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:42,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:42,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:42,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:42,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:42,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:42,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:42,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:40:42,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:42,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:42,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:42,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:42,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:42,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:42,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:42,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:40:42,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:42,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 21:40:42,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:42,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:42,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:42,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:42,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:40:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:43,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:43,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:43,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:40:43,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:43,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 21:40:43,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:43,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:43,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:43,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:43,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:43,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:43,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:40:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:43,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:43,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:43,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:40:43,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:43,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:40:43,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:43,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:43,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:43,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:43,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:40:43,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:43,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:40:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:43,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:43,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:43,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 21:40:43,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:43,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-14 21:40:43,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:43,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:43,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:40:43,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:43,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-14 21:40:43,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:44,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2366 backedges. 951 proven. 56 refuted. 0 times theorem prover too weak. 1359 trivial. 0 not checked. [2020-10-14 21:40:44,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292800973] [2020-10-14 21:40:44,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:44,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:40:44,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104571380] [2020-10-14 21:40:44,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:40:44,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:44,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:40:44,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:40:44,022 INFO L87 Difference]: Start difference. First operand 6878 states and 7661 transitions. Second operand 8 states. [2020-10-14 21:40:46,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:46,896 INFO L93 Difference]: Finished difference Result 15060 states and 16880 transitions. [2020-10-14 21:40:46,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 21:40:46,900 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 876 [2020-10-14 21:40:46,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:46,922 INFO L225 Difference]: With dead ends: 15060 [2020-10-14 21:40:46,923 INFO L226 Difference]: Without dead ends: 8554 [2020-10-14 21:40:46,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-14 21:40:46,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2020-10-14 21:40:47,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 7990. [2020-10-14 21:40:47,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7990 states. [2020-10-14 21:40:47,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7990 states to 7990 states and 8865 transitions. [2020-10-14 21:40:47,091 INFO L78 Accepts]: Start accepts. Automaton has 7990 states and 8865 transitions. Word has length 876 [2020-10-14 21:40:47,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:47,093 INFO L479 AbstractCegarLoop]: Abstraction has 7990 states and 8865 transitions. [2020-10-14 21:40:47,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:40:47,093 INFO L276 IsEmpty]: Start isEmpty. Operand 7990 states and 8865 transitions. [2020-10-14 21:40:47,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 888 [2020-10-14 21:40:47,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:47,109 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:40:47,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 21:40:47,109 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:47,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:47,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1788966031, now seen corresponding path program 1 times [2020-10-14 21:40:47,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:47,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111993450] [2020-10-14 21:40:47,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:47,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:47,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:50,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:52,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:52,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:52,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 909 [2020-10-14 21:40:52,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:40:52,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5097 [2020-10-14 21:40:52,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:52,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:52,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:52,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-14 21:40:52,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 21:40:52,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:52,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:40:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:52,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:52,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:52,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:40:52,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:52,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 21:40:52,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:52,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:52,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:52,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:52,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:40:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:52,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:52,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:52,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:40:52,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:40:52,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:52,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:52,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:52,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:40:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:52,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:52,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:52,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:40:52,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:52,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:40:52,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:52,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:52,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:52,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:52,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:52,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:40:52,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:40:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:52,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:52,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:52,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:40:52,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:52,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 21:40:52,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:52,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:52,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:52,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:40:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:52,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:52,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:52,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:40:52,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:52,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:40:52,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:52,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:52,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:52,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:40:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:52,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:53,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:53,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:40:53,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:53,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 21:40:53,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:53,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:40:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:40:53,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-14 21:40:53,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:40:53,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:40:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:53,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:53,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:53,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 21:40:53,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:53,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-14 21:40:53,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:53,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:40:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:40:53,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 21:40:53,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:53,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 764 [2020-10-14 21:40:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:53,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:53,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:40:53,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:40:53,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:40:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 21:40:53,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:40:53,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:40:53,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:40:53,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 21:40:53,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:40:53,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:40:54,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 961 proven. 72 refuted. 0 times theorem prover too weak. 1329 trivial. 0 not checked. [2020-10-14 21:40:54,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111993450] [2020-10-14 21:40:54,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:40:54,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:40:54,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031770661] [2020-10-14 21:40:54,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:40:54,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:40:54,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:40:54,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:40:54,221 INFO L87 Difference]: Start difference. First operand 7990 states and 8865 transitions. Second operand 7 states. [2020-10-14 21:40:56,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:40:56,422 INFO L93 Difference]: Finished difference Result 17464 states and 19508 transitions. [2020-10-14 21:40:56,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:40:56,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 887 [2020-10-14 21:40:56,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:40:56,449 INFO L225 Difference]: With dead ends: 17464 [2020-10-14 21:40:56,449 INFO L226 Difference]: Without dead ends: 9846 [2020-10-14 21:40:56,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:40:56,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9846 states. [2020-10-14 21:40:56,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9846 to 9108. [2020-10-14 21:40:56,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9108 states. [2020-10-14 21:40:56,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9108 states to 9108 states and 10198 transitions. [2020-10-14 21:40:56,662 INFO L78 Accepts]: Start accepts. Automaton has 9108 states and 10198 transitions. Word has length 887 [2020-10-14 21:40:56,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:40:56,663 INFO L479 AbstractCegarLoop]: Abstraction has 9108 states and 10198 transitions. [2020-10-14 21:40:56,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:40:56,663 INFO L276 IsEmpty]: Start isEmpty. Operand 9108 states and 10198 transitions. [2020-10-14 21:40:56,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 950 [2020-10-14 21:40:56,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:40:56,683 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:40:56,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 21:40:56,683 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:40:56,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:40:56,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1483846172, now seen corresponding path program 1 times [2020-10-14 21:40:56,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:40:56,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065838093] [2020-10-14 21:40:56,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:40:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:40:57,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:40:57,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:01,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:01,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:01,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 973 [2020-10-14 21:41:01,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:41:01,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 21:41:01,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:01,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:01,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:41:01,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-14 21:41:01,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-10-14 21:41:01,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:02,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:41:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:02,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:02,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:02,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:41:02,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:02,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:41:02,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:02,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:02,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:02,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:02,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:41:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:02,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:02,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:02,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:41:02,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:02,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 21:41:02,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:02,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:02,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:02,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:41:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:02,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:02,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:02,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:41:02,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:02,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:41:02,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:02,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:02,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:02,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:41:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:02,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:02,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:02,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:41:02,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:02,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:41:02,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:02,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:02,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:02,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:41:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:02,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:02,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:02,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:41:02,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:02,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:41:02,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:02,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:02,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:02,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:02,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:02,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:02,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:41:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:02,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:02,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:02,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:41:02,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:02,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 21:41:02,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:02,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:02,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:02,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:02,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:41:02,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:41:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:02,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:02,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:02,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:41:02,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:02,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 21:41:02,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:02,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:41:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:41:02,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:02,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:41:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:02,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:02,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:02,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 21:41:02,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:02,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-14 21:41:02,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:02,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:02,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:41:02,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:02,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-14 21:41:02,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:02,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 826 [2020-10-14 21:41:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:02,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:02,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:03,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:03,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:41:03,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:41:03,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 21:41:03,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:03,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:03,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:41:03,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:03,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:41:03,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:03,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2928 backedges. 1490 proven. 72 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2020-10-14 21:41:03,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065838093] [2020-10-14 21:41:03,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:41:03,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 21:41:03,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944123176] [2020-10-14 21:41:03,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 21:41:03,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:41:03,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 21:41:03,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:41:03,569 INFO L87 Difference]: Start difference. First operand 9108 states and 10198 transitions. Second operand 10 states. [2020-10-14 21:41:06,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:41:06,245 INFO L93 Difference]: Finished difference Result 17434 states and 19589 transitions. [2020-10-14 21:41:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 21:41:06,246 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 949 [2020-10-14 21:41:06,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:41:06,264 INFO L225 Difference]: With dead ends: 17434 [2020-10-14 21:41:06,265 INFO L226 Difference]: Without dead ends: 8554 [2020-10-14 21:41:06,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-10-14 21:41:06,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2020-10-14 21:41:06,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 8542. [2020-10-14 21:41:06,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8542 states. [2020-10-14 21:41:06,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8542 states to 8542 states and 9526 transitions. [2020-10-14 21:41:06,420 INFO L78 Accepts]: Start accepts. Automaton has 8542 states and 9526 transitions. Word has length 949 [2020-10-14 21:41:06,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:41:06,421 INFO L479 AbstractCegarLoop]: Abstraction has 8542 states and 9526 transitions. [2020-10-14 21:41:06,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 21:41:06,422 INFO L276 IsEmpty]: Start isEmpty. Operand 8542 states and 9526 transitions. [2020-10-14 21:41:06,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 962 [2020-10-14 21:41:06,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:41:06,448 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:41:06,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 21:41:06,449 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:41:06,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:41:06,449 INFO L82 PathProgramCache]: Analyzing trace with hash -275487925, now seen corresponding path program 1 times [2020-10-14 21:41:06,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:41:06,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361482874] [2020-10-14 21:41:06,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:41:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:06,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:08,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 983 [2020-10-14 21:41:10,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:41:10,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3834 [2020-10-14 21:41:10,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:41:10,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 850 [2020-10-14 21:41:10,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 21:41:10,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:41:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:41:10,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:41:10,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:41:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:41:10,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:41:10,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:41:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:41:10,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:41:10,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:41:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:41:10,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:41:10,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:41:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:41:10,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:41:10,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:41:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:10,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:10,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 21:41:10,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:10,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:41:10,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:10,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:10,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:10,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:10,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:10,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:10,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-14 21:41:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:10,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 21:41:11,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 21:41:11,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:41:11,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:11,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 21:41:11,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-10-14 21:41:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:11,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:11,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:11,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:41:11,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:11,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 21:41:11,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:11,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:11,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:41:11,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:11,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:41:11,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:11,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2611 backedges. 748 proven. 56 refuted. 0 times theorem prover too weak. 1807 trivial. 0 not checked. [2020-10-14 21:41:11,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361482874] [2020-10-14 21:41:11,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:41:11,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:41:11,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439654029] [2020-10-14 21:41:11,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:41:11,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:41:11,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:41:11,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:41:11,498 INFO L87 Difference]: Start difference. First operand 8542 states and 9526 transitions. Second operand 8 states. [2020-10-14 21:41:14,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:41:14,398 INFO L93 Difference]: Finished difference Result 19534 states and 22254 transitions. [2020-10-14 21:41:14,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 21:41:14,399 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 961 [2020-10-14 21:41:14,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:41:14,431 INFO L225 Difference]: With dead ends: 19534 [2020-10-14 21:41:14,431 INFO L226 Difference]: Without dead ends: 11364 [2020-10-14 21:41:14,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-14 21:41:14,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11364 states. [2020-10-14 21:41:14,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11364 to 10760. [2020-10-14 21:41:14,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10760 states. [2020-10-14 21:41:14,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10760 states to 10760 states and 12151 transitions. [2020-10-14 21:41:14,816 INFO L78 Accepts]: Start accepts. Automaton has 10760 states and 12151 transitions. Word has length 961 [2020-10-14 21:41:14,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:41:14,817 INFO L479 AbstractCegarLoop]: Abstraction has 10760 states and 12151 transitions. [2020-10-14 21:41:14,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:41:14,818 INFO L276 IsEmpty]: Start isEmpty. Operand 10760 states and 12151 transitions. [2020-10-14 21:41:14,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2020-10-14 21:41:14,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:41:14,837 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:41:14,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 21:41:14,839 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:41:14,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:41:14,839 INFO L82 PathProgramCache]: Analyzing trace with hash 643481021, now seen corresponding path program 1 times [2020-10-14 21:41:14,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:41:14,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635485485] [2020-10-14 21:41:14,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:41:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:15,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:15,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:16,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:18,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:18,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1026 [2020-10-14 21:41:18,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:41:18,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2979 [2020-10-14 21:41:18,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:18,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:18,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:41:18,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-14 21:41:18,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 21:41:18,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:18,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:41:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:18,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:18,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:18,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:41:18,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:18,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:41:18,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:18,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:18,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:18,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:18,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:18,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:18,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:41:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:18,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:18,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:18,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:41:18,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:18,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:41:18,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:18,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:18,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:18,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:18,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:18,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:18,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:41:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:18,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:18,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:18,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:41:18,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:18,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:41:18,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:18,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:18,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:18,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:18,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:18,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:18,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:41:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:18,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:18,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:18,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:41:18,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:18,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:41:18,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:18,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:18,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:18,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:18,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:18,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:18,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:41:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:18,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:18,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:18,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:41:18,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:18,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 21:41:18,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:18,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:18,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:18,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:18,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:18,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:41:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:18,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:18,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:18,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:41:18,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:18,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:41:18,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:18,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:18,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:18,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:18,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:18,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:18,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:41:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:18,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:18,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:18,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:41:18,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:18,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 21:41:18,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:18,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:18,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:18,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:18,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:18,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:18,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:41:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:18,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:18,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:18,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:41:18,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:18,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 21:41:18,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:18,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:41:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-14 21:41:18,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:18,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:41:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:18,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:18,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:18,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:41:18,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:18,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 21:41:18,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:18,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:18,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:41:18,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:18,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:41:18,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3078 backedges. 1049 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-14 21:41:19,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635485485] [2020-10-14 21:41:19,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:41:19,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:41:19,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749288461] [2020-10-14 21:41:19,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:41:19,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:41:19,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:41:19,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:41:19,186 INFO L87 Difference]: Start difference. First operand 10760 states and 12151 transitions. Second operand 7 states. [2020-10-14 21:41:20,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:41:20,810 INFO L93 Difference]: Finished difference Result 22632 states and 25892 transitions. [2020-10-14 21:41:20,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:41:20,811 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1002 [2020-10-14 21:41:20,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:41:20,832 INFO L225 Difference]: With dead ends: 22632 [2020-10-14 21:41:20,832 INFO L226 Difference]: Without dead ends: 12244 [2020-10-14 21:41:20,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:41:20,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12244 states. [2020-10-14 21:41:21,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12244 to 12236. [2020-10-14 21:41:21,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12236 states. [2020-10-14 21:41:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12236 states to 12236 states and 13836 transitions. [2020-10-14 21:41:21,052 INFO L78 Accepts]: Start accepts. Automaton has 12236 states and 13836 transitions. Word has length 1002 [2020-10-14 21:41:21,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:41:21,053 INFO L479 AbstractCegarLoop]: Abstraction has 12236 states and 13836 transitions. [2020-10-14 21:41:21,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:41:21,053 INFO L276 IsEmpty]: Start isEmpty. Operand 12236 states and 13836 transitions. [2020-10-14 21:41:21,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1095 [2020-10-14 21:41:21,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:41:21,072 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:41:21,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 21:41:21,072 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:41:21,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:41:21,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1143284603, now seen corresponding path program 1 times [2020-10-14 21:41:21,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:41:21,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740060457] [2020-10-14 21:41:21,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:41:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:21,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:24,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:26,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:26,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1118 [2020-10-14 21:41:26,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:41:26,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5207 [2020-10-14 21:41:26,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:26,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:26,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:41:26,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 985 [2020-10-14 21:41:26,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 21:41:26,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:26,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:41:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:26,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:26,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:26,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:41:26,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:26,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:41:26,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:26,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:26,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:26,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:26,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:26,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:26,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:41:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:26,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:26,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:26,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:41:26,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:26,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:41:26,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:26,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:26,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:26,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:26,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:26,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:26,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:41:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:26,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:26,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:26,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:41:26,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:26,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:41:26,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:26,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:26,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:26,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:41:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:26,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:26,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:26,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:41:26,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:26,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:41:26,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:26,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:26,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:26,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:26,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:26,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:26,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:41:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:26,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:26,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:26,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:41:26,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:26,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:41:26,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:26,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:26,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:26,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:26,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:26,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:26,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:41:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:26,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:26,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:27,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 21:41:27,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:27,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:41:27,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:27,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:27,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:27,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-14 21:41:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:27,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:27,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:27,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 21:41:27,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:27,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:41:27,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:27,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:27,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:27,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:27,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:27,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:27,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-10-14 21:41:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:27,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:27,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:27,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 21:41:27,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:27,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 21:41:27,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:27,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:27,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:41:27,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:27,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 21:41:27,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:27,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-14 21:41:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:27,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:27,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:27,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:41:27,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:27,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 21:41:27,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:27,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:27,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:41:27,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:41:27,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:28,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3470 backedges. 869 proven. 61 refuted. 0 times theorem prover too weak. 2540 trivial. 0 not checked. [2020-10-14 21:41:28,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740060457] [2020-10-14 21:41:28,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:41:28,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:41:28,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068630403] [2020-10-14 21:41:28,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:41:28,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:41:28,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:41:28,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:41:28,258 INFO L87 Difference]: Start difference. First operand 12236 states and 13836 transitions. Second operand 8 states. [2020-10-14 21:41:32,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:41:32,769 INFO L93 Difference]: Finished difference Result 26760 states and 30285 transitions. [2020-10-14 21:41:32,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 21:41:32,772 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1094 [2020-10-14 21:41:32,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:41:32,814 INFO L225 Difference]: With dead ends: 26760 [2020-10-14 21:41:32,814 INFO L226 Difference]: Without dead ends: 14712 [2020-10-14 21:41:32,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-10-14 21:41:32,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14712 states. [2020-10-14 21:41:33,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14712 to 12620. [2020-10-14 21:41:33,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12620 states. [2020-10-14 21:41:33,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12620 states to 12620 states and 14132 transitions. [2020-10-14 21:41:33,141 INFO L78 Accepts]: Start accepts. Automaton has 12620 states and 14132 transitions. Word has length 1094 [2020-10-14 21:41:33,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:41:33,142 INFO L479 AbstractCegarLoop]: Abstraction has 12620 states and 14132 transitions. [2020-10-14 21:41:33,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:41:33,142 INFO L276 IsEmpty]: Start isEmpty. Operand 12620 states and 14132 transitions. [2020-10-14 21:41:33,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1414 [2020-10-14 21:41:33,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:41:33,165 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:41:33,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 21:41:33,166 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:41:33,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:41:33,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1191220555, now seen corresponding path program 1 times [2020-10-14 21:41:33,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:41:33,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808704347] [2020-10-14 21:41:33,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:41:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:33,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:33,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:37,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:38,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:38,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1443 [2020-10-14 21:41:38,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:41:38,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 21:41:38,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:38,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:38,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 21:41:38,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-14 21:41:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-14 21:41:38,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:38,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:41:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:38,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:38,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:38,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:41:38,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:38,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:41:38,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:38,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:38,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:38,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:41:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:38,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:38,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:38,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:41:38,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:41:38,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:38,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:38,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:38,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:38,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:38,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:41:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:38,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:38,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:38,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:41:38,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:38,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:41:38,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:38,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:38,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:38,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:38,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:38,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:38,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:41:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:38,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:38,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:38,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:41:38,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:38,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:41:38,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:38,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:38,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:38,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:38,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:41:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:38,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:38,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:38,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:41:38,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:38,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:41:38,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:38,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:38,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:38,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:38,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:38,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:38,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:41:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:38,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:38,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:38,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:41:38,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:38,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 21:41:38,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:38,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:38,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:38,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:38,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:38,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:38,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:41:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:38,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:38,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:38,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:41:38,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:38,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:41:38,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:38,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:38,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:41:38,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:38,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:41:38,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:38,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:41:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:38,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:39,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:39,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:41:39,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:39,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 21:41:39,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:39,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:39,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:41:39,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:39,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:41:39,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:39,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:41:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:39,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:39,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:39,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:39,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:41:39,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:41:39,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-10-14 21:41:39,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:39,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:41:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 21:41:39,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:39,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2020-10-14 21:41:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:39,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:39,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:39,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:41:39,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:39,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 21:41:39,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:39,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-14 21:41:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:39,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:39,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-14 21:41:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:39,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:39,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:39,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 21:41:39,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:39,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 21:41:39,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:39,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:39,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:39,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-14 21:41:39,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:39,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:40,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1290 [2020-10-14 21:41:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:40,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:40,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:40,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:41:40,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:40,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:41:40,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:40,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:40,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:40,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 21:41:40,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:40,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:41,809 INFO L134 CoverageAnalysis]: Checked inductivity of 6022 backedges. 1951 proven. 802 refuted. 0 times theorem prover too weak. 3269 trivial. 0 not checked. [2020-10-14 21:41:41,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808704347] [2020-10-14 21:41:41,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:41:41,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 21:41:41,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994374444] [2020-10-14 21:41:41,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 21:41:41,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:41:41,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 21:41:41,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:41:41,813 INFO L87 Difference]: Start difference. First operand 12620 states and 14132 transitions. Second operand 11 states. [2020-10-14 21:41:45,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:41:45,527 INFO L93 Difference]: Finished difference Result 25286 states and 28433 transitions. [2020-10-14 21:41:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 21:41:45,529 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1413 [2020-10-14 21:41:45,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:41:45,554 INFO L225 Difference]: With dead ends: 25286 [2020-10-14 21:41:45,554 INFO L226 Difference]: Without dead ends: 12856 [2020-10-14 21:41:45,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2020-10-14 21:41:45,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12856 states. [2020-10-14 21:41:45,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12856 to 12622. [2020-10-14 21:41:45,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12622 states. [2020-10-14 21:41:45,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 14135 transitions. [2020-10-14 21:41:45,755 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 14135 transitions. Word has length 1413 [2020-10-14 21:41:45,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:41:45,756 INFO L479 AbstractCegarLoop]: Abstraction has 12622 states and 14135 transitions. [2020-10-14 21:41:45,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 21:41:45,756 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 14135 transitions. [2020-10-14 21:41:45,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1468 [2020-10-14 21:41:45,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:41:45,776 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:41:45,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 21:41:45,776 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:41:45,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:41:45,777 INFO L82 PathProgramCache]: Analyzing trace with hash 410450033, now seen corresponding path program 1 times [2020-10-14 21:41:45,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:41:45,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285229299] [2020-10-14 21:41:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:41:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:46,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:46,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:47,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:48,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:50,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:50,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1497 [2020-10-14 21:41:50,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:41:50,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-14 21:41:50,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:50,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:50,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:41:50,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 925 [2020-10-14 21:41:50,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 327 [2020-10-14 21:41:50,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:51,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:41:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:51,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:51,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:51,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:41:51,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:51,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:41:51,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:51,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:51,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:51,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:51,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:51,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:51,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:41:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:51,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:51,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:51,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:41:51,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:51,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:41:51,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:51,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:51,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:51,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:41:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:51,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:51,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:51,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:41:51,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:51,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:41:51,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:51,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:51,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:51,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:51,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:51,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:51,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:41:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:51,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:51,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:51,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:41:51,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:51,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:41:51,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:51,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:51,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:51,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:51,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:51,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:51,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:41:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:51,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:51,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:51,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:41:51,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:51,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 21:41:51,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:51,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:51,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:51,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:51,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:51,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:51,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:41:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:51,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:51,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:51,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 21:41:51,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:51,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 21:41:51,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:51,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:51,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:51,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-14 21:41:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:51,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:51,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:51,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 21:41:51,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:51,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 21:41:51,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:51,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:51,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:51,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-10-14 21:41:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:51,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:51,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:51,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:41:51,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:51,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 21:41:51,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:51,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:51,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:41:51,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:51,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 21:41:51,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:51,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 911 [2020-10-14 21:41:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:51,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:51,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:52,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:52,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:41:52,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:41:52,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-10-14 21:41:52,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:52,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:52,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:41:52,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:52,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 21:41:52,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:52,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1051 [2020-10-14 21:41:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:52,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:52,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:52,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:41:52,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:52,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 21:41:52,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:52,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:41:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 21:41:52,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:52,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-14 21:41:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:52,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:52,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:52,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 21:41:52,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:52,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 21:41:52,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:52,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:52,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-14 21:41:52,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:52,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:52,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344 [2020-10-14 21:41:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:52,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:52,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:52,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:41:52,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:52,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 21:41:52,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:52,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:52,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:52,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 21:41:52,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:52,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:53,707 INFO L134 CoverageAnalysis]: Checked inductivity of 6375 backedges. 2357 proven. 356 refuted. 0 times theorem prover too weak. 3662 trivial. 0 not checked. [2020-10-14 21:41:53,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285229299] [2020-10-14 21:41:53,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:41:53,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:41:53,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332176475] [2020-10-14 21:41:53,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:41:53,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:41:53,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:41:53,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:41:53,710 INFO L87 Difference]: Start difference. First operand 12622 states and 14135 transitions. Second operand 7 states. [2020-10-14 21:41:55,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:41:55,699 INFO L93 Difference]: Finished difference Result 25834 states and 29192 transitions. [2020-10-14 21:41:55,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:41:55,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1467 [2020-10-14 21:41:55,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:41:55,716 INFO L225 Difference]: With dead ends: 25834 [2020-10-14 21:41:55,716 INFO L226 Difference]: Without dead ends: 10810 [2020-10-14 21:41:55,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:41:55,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2020-10-14 21:41:55,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 10026. [2020-10-14 21:41:55,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10026 states. [2020-10-14 21:41:55,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10026 states to 10026 states and 11211 transitions. [2020-10-14 21:41:55,859 INFO L78 Accepts]: Start accepts. Automaton has 10026 states and 11211 transitions. Word has length 1467 [2020-10-14 21:41:55,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:41:55,860 INFO L479 AbstractCegarLoop]: Abstraction has 10026 states and 11211 transitions. [2020-10-14 21:41:55,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:41:55,860 INFO L276 IsEmpty]: Start isEmpty. Operand 10026 states and 11211 transitions. [2020-10-14 21:41:55,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1532 [2020-10-14 21:41:55,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:41:55,879 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:41:55,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 21:41:55,879 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:41:55,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:41:55,880 INFO L82 PathProgramCache]: Analyzing trace with hash 476945048, now seen corresponding path program 1 times [2020-10-14 21:41:55,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:41:55,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753688569] [2020-10-14 21:41:55,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:41:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:56,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:57,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:58,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:58,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1563 [2020-10-14 21:41:58,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:41:58,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2803 [2020-10-14 21:41:58,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:58,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:58,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:41:58,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-14 21:41:58,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 21:41:58,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:59,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:41:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:41:59,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:41:59,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:59,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:59,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:59,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:59,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:41:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:41:59,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:41:59,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:59,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:59,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:59,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:59,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:41:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:41:59,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:41:59,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:59,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:59,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:59,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:41:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:41:59,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:41:59,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:59,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:59,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:41:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:41:59,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:41:59,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:59,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:59,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:41:59,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:41:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:41:59,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 21:41:59,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:59,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:59,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:59,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:59,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:41:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:41:59,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:41:59,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:59,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:59,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:59,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:41:59,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:41:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:41:59,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 21:41:59,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:59,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:59,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:59,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:59,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:41:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:41:59,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:41:59,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:59,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:59,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:41:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:41:59,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 21:41:59,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:59,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:59,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:59,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:59,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:41:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:41:59,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:41:59,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:41:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:41:59,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:59,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:41:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 21:41:59,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 21:41:59,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:41:59,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:41:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 21:41:59,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:41:59,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-14 21:41:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:41:59,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:41:59,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:41:59,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:41:59,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:41:59,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:41:59,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:41:59,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:41:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:41:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:41:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:41:59,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:00,740 INFO L134 CoverageAnalysis]: Checked inductivity of 7222 backedges. 1432 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-14 21:42:00,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753688569] [2020-10-14 21:42:00,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:42:00,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:42:00,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910721090] [2020-10-14 21:42:00,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:42:00,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:42:00,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:42:00,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:42:00,742 INFO L87 Difference]: Start difference. First operand 10026 states and 11211 transitions. Second operand 7 states. [2020-10-14 21:42:03,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:42:03,004 INFO L93 Difference]: Finished difference Result 21856 states and 24545 transitions. [2020-10-14 21:42:03,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:42:03,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1531 [2020-10-14 21:42:03,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:42:03,017 INFO L225 Difference]: With dead ends: 21856 [2020-10-14 21:42:03,017 INFO L226 Difference]: Without dead ends: 9436 [2020-10-14 21:42:03,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:42:03,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9436 states. [2020-10-14 21:42:03,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9436 to 6512. [2020-10-14 21:42:03,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6512 states. [2020-10-14 21:42:03,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6512 states to 6512 states and 7034 transitions. [2020-10-14 21:42:03,108 INFO L78 Accepts]: Start accepts. Automaton has 6512 states and 7034 transitions. Word has length 1531 [2020-10-14 21:42:03,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:42:03,109 INFO L479 AbstractCegarLoop]: Abstraction has 6512 states and 7034 transitions. [2020-10-14 21:42:03,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:42:03,109 INFO L276 IsEmpty]: Start isEmpty. Operand 6512 states and 7034 transitions. [2020-10-14 21:42:03,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1554 [2020-10-14 21:42:03,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:42:03,133 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:42:03,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 21:42:03,133 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:42:03,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:42:03,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1922120436, now seen corresponding path program 1 times [2020-10-14 21:42:03,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:42:03,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902031793] [2020-10-14 21:42:03,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:42:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:03,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:04,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:05,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:06,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:08,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:08,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1585 [2020-10-14 21:42:08,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:42:08,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-14 21:42:08,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:08,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:08,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:42:08,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-14 21:42:08,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 21:42:08,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:08,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:42:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:08,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:08,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:08,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:42:08,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:08,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:42:08,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:08,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:08,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:08,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:08,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:42:08,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:42:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:08,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:08,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:08,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:42:08,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:08,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:42:08,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:08,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:08,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:42:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:08,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:08,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:08,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:42:08,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:08,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:42:08,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:08,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:08,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:08,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:08,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:42:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:08,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:08,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:08,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:42:08,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:08,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:42:08,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:08,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:08,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:08,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:08,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:08,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:08,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:42:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:08,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:08,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:08,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:42:08,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:08,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:42:08,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:08,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:08,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:08,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:42:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:08,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:09,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:09,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:42:09,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:09,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:42:09,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:09,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:09,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:09,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:09,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:09,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:09,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:42:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:09,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:09,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:09,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:42:09,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:09,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:42:09,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:09,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:09,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:09,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:09,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:09,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:09,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:42:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:09,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:09,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:09,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:42:09,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:09,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:42:09,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:09,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:09,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:09,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:09,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:09,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:42:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:09,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:09,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:09,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:42:09,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:09,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:42:09,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:09,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:09,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:09,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:09,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:09,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:09,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:42:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:09,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:09,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:09,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:42:09,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:09,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 21:42:09,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:09,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:09,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:09,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:09,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:09,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:09,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:42:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:09,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:09,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:09,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:42:09,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:09,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:42:09,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:09,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:09,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:09,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:09,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:09,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:09,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:42:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:09,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:09,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:09,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 21:42:09,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:09,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:42:09,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:09,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:42:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 21:42:09,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:09,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-14 21:42:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:09,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:09,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:09,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:42:09,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:09,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 21:42:09,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:09,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:09,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:42:09,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:42:09,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:42:09,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:10,552 INFO L134 CoverageAnalysis]: Checked inductivity of 7431 backedges. 1641 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-14 21:42:10,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902031793] [2020-10-14 21:42:10,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:42:10,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:42:10,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110875085] [2020-10-14 21:42:10,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:42:10,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:42:10,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:42:10,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:42:10,555 INFO L87 Difference]: Start difference. First operand 6512 states and 7034 transitions. Second operand 8 states. [2020-10-14 21:42:12,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:42:12,705 INFO L93 Difference]: Finished difference Result 12686 states and 13761 transitions. [2020-10-14 21:42:12,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:42:12,706 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1553 [2020-10-14 21:42:12,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:42:12,718 INFO L225 Difference]: With dead ends: 12686 [2020-10-14 21:42:12,718 INFO L226 Difference]: Without dead ends: 5796 [2020-10-14 21:42:12,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-14 21:42:12,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5796 states. [2020-10-14 21:42:12,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5796 to 5754. [2020-10-14 21:42:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5754 states. [2020-10-14 21:42:12,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5754 states to 5754 states and 6137 transitions. [2020-10-14 21:42:12,784 INFO L78 Accepts]: Start accepts. Automaton has 5754 states and 6137 transitions. Word has length 1553 [2020-10-14 21:42:12,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:42:12,785 INFO L479 AbstractCegarLoop]: Abstraction has 5754 states and 6137 transitions. [2020-10-14 21:42:12,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:42:12,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5754 states and 6137 transitions. [2020-10-14 21:42:12,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1659 [2020-10-14 21:42:12,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:42:12,806 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:42:12,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 21:42:12,806 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:42:12,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:42:12,807 INFO L82 PathProgramCache]: Analyzing trace with hash -617529180, now seen corresponding path program 1 times [2020-10-14 21:42:12,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:42:12,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502225355] [2020-10-14 21:42:12,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:42:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:13,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:13,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:17,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:17,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:18,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:18,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1692 [2020-10-14 21:42:18,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:42:18,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-14 21:42:18,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:18,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:18,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 21:42:18,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 991 [2020-10-14 21:42:18,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 700 [2020-10-14 21:42:18,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:18,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:42:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:18,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:18,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:18,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:42:18,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:18,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:42:18,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:18,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:18,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:18,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:18,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:18,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:18,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:42:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:18,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:18,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:18,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:42:18,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:42:18,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:18,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:18,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:42:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:18,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:18,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:18,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:42:18,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:18,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:42:18,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:18,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:18,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:18,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:18,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:18,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:18,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:42:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:18,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:18,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:18,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:42:18,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:18,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:42:18,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:18,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:18,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:18,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:42:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:18,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:18,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:18,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:42:18,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:18,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:42:18,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:18,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:18,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:18,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:18,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:18,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:18,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:42:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:18,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:18,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:18,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:42:18,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:18,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 21:42:18,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:18,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:18,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:18,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:42:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:18,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:18,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:18,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:42:18,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:18,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 21:42:18,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:18,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:18,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:18,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:18,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:18,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:18,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:42:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:18,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:18,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:18,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:42:18,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:18,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 21:42:18,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:18,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:18,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:42:18,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:18,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:42:18,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:18,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:42:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:18,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:18,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:18,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:42:18,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:18,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 21:42:18,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:18,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:42:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 21:42:18,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:18,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:42:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:18,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:19,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:19,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:19,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:42:19,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:42:19,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-14 21:42:19,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:19,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:19,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:42:19,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:19,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 21:42:19,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:19,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:42:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:19,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:19,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:19,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:19,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:42:19,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:42:19,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 21:42:19,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:19,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:19,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:42:19,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:19,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-14 21:42:19,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:19,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:42:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:19,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:19,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:19,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:19,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:42:19,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:42:19,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 21:42:19,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:19,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:42:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 21:42:19,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:19,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:42:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:19,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:19,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:19,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:19,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 21:42:19,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:42:19,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-14 21:42:19,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:19,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:19,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:42:19,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:42:19,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 21:42:19,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:19,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1535 [2020-10-14 21:42:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:42:19,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:42:19,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:42:19,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:42:19,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:42:19,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 21:42:19,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:42:19,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:42:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:42:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:42:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:42:19,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:42:20,941 INFO L134 CoverageAnalysis]: Checked inductivity of 8582 backedges. 1626 proven. 90 refuted. 0 times theorem prover too weak. 6866 trivial. 0 not checked. [2020-10-14 21:42:20,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502225355] [2020-10-14 21:42:20,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:42:20,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:42:20,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603118367] [2020-10-14 21:42:20,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:42:20,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:42:20,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:42:20,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:42:20,944 INFO L87 Difference]: Start difference. First operand 5754 states and 6137 transitions. Second operand 8 states.