/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:30:50,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:30:50,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:30:50,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:30:50,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:30:50,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:30:50,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:30:50,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:30:50,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:30:50,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:30:50,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:30:50,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:30:50,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:30:50,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:30:50,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:30:50,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:30:50,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:30:50,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:30:50,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:30:50,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:30:50,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:30:50,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:30:50,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:30:50,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:30:50,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:30:50,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:30:50,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:30:50,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:30:50,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:30:50,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:30:50,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:30:50,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:30:50,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:30:50,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:30:50,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:30:50,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:30:50,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:30:50,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:30:50,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:30:50,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:30:50,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:30:50,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 14:30:50,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:30:50,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:30:50,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:30:50,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:30:50,773 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:30:50,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:30:50,774 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:30:50,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:30:50,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:30:50,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:30:50,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:30:50,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:30:50,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:30:50,775 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:30:50,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:30:50,775 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:30:50,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:30:50,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:30:50,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:30:50,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:30:50,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:30:50,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:30:50,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:30:50,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:30:50,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:30:50,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:30:50,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:30:50,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:30:50,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:30:50,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:30:51,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:30:51,106 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:30:51,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:30:51,111 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:30:51,112 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:30:51,113 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label34.c [2020-10-12 14:30:51,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d95865b57/397191b82c6645ef8c23fd8fd0302f63/FLAGd66f66eb0 [2020-10-12 14:30:51,845 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:30:51,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label34.c [2020-10-12 14:30:51,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d95865b57/397191b82c6645ef8c23fd8fd0302f63/FLAGd66f66eb0 [2020-10-12 14:30:52,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d95865b57/397191b82c6645ef8c23fd8fd0302f63 [2020-10-12 14:30:52,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:30:52,057 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:30:52,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:30:52,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:30:52,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:30:52,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:30:52" (1/1) ... [2020-10-12 14:30:52,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c286c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:52, skipping insertion in model container [2020-10-12 14:30:52,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:30:52" (1/1) ... [2020-10-12 14:30:52,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:30:52,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:30:52,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:30:52,960 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:30:53,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:30:53,419 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:30:53,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:53 WrapperNode [2020-10-12 14:30:53,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:30:53,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:30:53,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:30:53,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:30:53,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:53" (1/1) ... [2020-10-12 14:30:53,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:53" (1/1) ... [2020-10-12 14:30:53,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:53" (1/1) ... [2020-10-12 14:30:53,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:53" (1/1) ... [2020-10-12 14:30:53,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:53" (1/1) ... [2020-10-12 14:30:53,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:53" (1/1) ... [2020-10-12 14:30:53,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:53" (1/1) ... [2020-10-12 14:30:53,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:30:53,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:30:53,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:30:53,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:30:53,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:30:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:30:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:30:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:30:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:30:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:30:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:30:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:30:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:30:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:30:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:30:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:30:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:30:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:30:56,018 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:30:56,018 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:30:56,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:30:56 BoogieIcfgContainer [2020-10-12 14:30:56,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:30:56,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:30:56,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:30:56,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:30:56,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:30:52" (1/3) ... [2020-10-12 14:30:56,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22956c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:30:56, skipping insertion in model container [2020-10-12 14:30:56,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:30:53" (2/3) ... [2020-10-12 14:30:56,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22956c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:30:56, skipping insertion in model container [2020-10-12 14:30:56,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:30:56" (3/3) ... [2020-10-12 14:30:56,034 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label34.c [2020-10-12 14:30:56,044 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:30:56,053 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:30:56,067 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:30:56,094 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:30:56,094 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:30:56,094 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:30:56,094 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:30:56,095 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:30:56,095 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:30:56,095 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:30:56,095 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:30:56,120 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-12 14:30:56,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 14:30:56,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:56,130 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] [2020-10-12 14:30:56,130 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:56,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:56,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1472830021, now seen corresponding path program 1 times [2020-10-12 14:30:56,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:56,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091160855] [2020-10-12 14:30:56,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:56,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:56,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:56,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 14:30:56,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:56,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-10-12 14:30:56,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:56,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:30:56,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:30:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 14:30:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-12 14:30:56,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:30:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:56,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:56,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:56,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:30:56,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:56,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:30:56,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:56,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:30:56,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:56,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:30:56,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:56,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:30:56,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091160855] [2020-10-12 14:30:56,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:30:56,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:30:56,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122698180] [2020-10-12 14:30:56,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:30:56,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:30:56,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:30:56,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:30:56,972 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-12 14:31:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:31:00,427 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-12 14:31:00,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:31:00,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-12 14:31:00,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:31:00,452 INFO L225 Difference]: With dead ends: 1169 [2020-10-12 14:31:00,453 INFO L226 Difference]: Without dead ends: 696 [2020-10-12 14:31:00,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:31:00,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-12 14:31:00,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-12 14:31:00,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-12 14:31:00,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-12 14:31:00,615 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 40 [2020-10-12 14:31:00,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:31:00,616 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-12 14:31:00,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:31:00,616 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-12 14:31:00,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 14:31:00,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:31:00,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:31:00,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:31:00,623 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:31:00,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:31:00,623 INFO L82 PathProgramCache]: Analyzing trace with hash 2017280877, now seen corresponding path program 1 times [2020-10-12 14:31:00,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:31:00,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716299108] [2020-10-12 14:31:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:31:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:00,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:00,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:01,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:01,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 14:31:01,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:31:01,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-10-12 14:31:01,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:01,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:31:01,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:31:01,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 14:31:01,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:31:01,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:01,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:01,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:01,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:01,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:01,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:31:01,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:01,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:01,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:01,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:31:01,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:01,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:01,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:01,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:01,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 14:31:01,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:01,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-12 14:31:01,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:01,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:01,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:01,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:31:01,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:02,014 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:31:02,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716299108] [2020-10-12 14:31:02,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:31:02,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 14:31:02,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929476040] [2020-10-12 14:31:02,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:31:02,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:02,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:31:02,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:31:02,019 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 8 states. [2020-10-12 14:31:05,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:31:05,843 INFO L93 Difference]: Finished difference Result 1739 states and 2661 transitions. [2020-10-12 14:31:05,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:31:05,844 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2020-10-12 14:31:05,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:31:05,856 INFO L225 Difference]: With dead ends: 1739 [2020-10-12 14:31:05,856 INFO L226 Difference]: Without dead ends: 1056 [2020-10-12 14:31:05,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:31:05,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2020-10-12 14:31:05,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1039. [2020-10-12 14:31:05,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2020-10-12 14:31:05,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1423 transitions. [2020-10-12 14:31:05,916 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1423 transitions. Word has length 115 [2020-10-12 14:31:05,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:31:05,918 INFO L479 AbstractCegarLoop]: Abstraction has 1039 states and 1423 transitions. [2020-10-12 14:31:05,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:31:05,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1423 transitions. [2020-10-12 14:31:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-12 14:31:05,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:31:05,932 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:31:05,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:31:05,932 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:31:05,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:31:05,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1839619576, now seen corresponding path program 1 times [2020-10-12 14:31:05,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:31:05,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389902309] [2020-10-12 14:31:05,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:31:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:06,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:06,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:06,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:06,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 14:31:06,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:31:06,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 681 [2020-10-12 14:31:06,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:06,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:31:06,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:31:06,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:31:06,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:06,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:06,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:06,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:06,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:06,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:06,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:31:06,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:31:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:06,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:06,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:06,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:06,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:31:06,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:06,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 14:31:06,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:06,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:06,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:31:06,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:31:06,950 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:31:06,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389902309] [2020-10-12 14:31:06,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:31:06,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:31:06,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333635999] [2020-10-12 14:31:06,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:31:06,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:06,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:31:06,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:31:06,956 INFO L87 Difference]: Start difference. First operand 1039 states and 1423 transitions. Second operand 7 states. [2020-10-12 14:31:10,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:31:10,950 INFO L93 Difference]: Finished difference Result 3171 states and 4418 transitions. [2020-10-12 14:31:10,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:31:10,951 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-12 14:31:10,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:31:10,967 INFO L225 Difference]: With dead ends: 3171 [2020-10-12 14:31:10,967 INFO L226 Difference]: Without dead ends: 2138 [2020-10-12 14:31:10,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:31:10,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2020-10-12 14:31:11,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2089. [2020-10-12 14:31:11,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-10-12 14:31:11,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2620 transitions. [2020-10-12 14:31:11,064 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2620 transitions. Word has length 116 [2020-10-12 14:31:11,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:31:11,067 INFO L479 AbstractCegarLoop]: Abstraction has 2089 states and 2620 transitions. [2020-10-12 14:31:11,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:31:11,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2620 transitions. [2020-10-12 14:31:11,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-12 14:31:11,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:31:11,072 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, 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] [2020-10-12 14:31:11,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:31:11,072 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:31:11,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:31:11,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1787198664, now seen corresponding path program 1 times [2020-10-12 14:31:11,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:31:11,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809449927] [2020-10-12 14:31:11,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:31:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:11,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:11,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:11,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:12,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:12,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:13,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:15,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:15,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-12 14:31:15,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:31:15,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4238 [2020-10-12 14:31:15,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:15,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:31:15,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:31:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 209 [2020-10-12 14:31:15,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:15,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:15,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:15,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:15,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:15,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:15,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:31:15,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:31:15,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:15,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:15,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:15,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:15,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:15,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:31:15,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:31:15,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-12 14:31:15,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:15,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:15,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:15,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:31:15,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:15,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:31:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:16,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:16,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:16,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:16,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:16,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:31:16,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:31:16,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-12 14:31:16,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:16,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:31:16,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 14:31:16,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:16,992 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 8 proven. 126 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:31:16,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809449927] [2020-10-12 14:31:16,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:31:16,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 14:31:16,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007674491] [2020-10-12 14:31:16,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 14:31:16,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:16,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 14:31:16,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:31:16,997 INFO L87 Difference]: Start difference. First operand 2089 states and 2620 transitions. Second operand 12 states. [2020-10-12 14:31:23,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:31:23,897 INFO L93 Difference]: Finished difference Result 5308 states and 6813 transitions. [2020-10-12 14:31:23,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 14:31:23,898 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 203 [2020-10-12 14:31:23,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:31:23,916 INFO L225 Difference]: With dead ends: 5308 [2020-10-12 14:31:23,917 INFO L226 Difference]: Without dead ends: 3225 [2020-10-12 14:31:23,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=254, Invalid=676, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:31:23,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2020-10-12 14:31:24,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 2806. [2020-10-12 14:31:24,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2806 states. [2020-10-12 14:31:24,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3585 transitions. [2020-10-12 14:31:24,022 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3585 transitions. Word has length 203 [2020-10-12 14:31:24,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:31:24,024 INFO L479 AbstractCegarLoop]: Abstraction has 2806 states and 3585 transitions. [2020-10-12 14:31:24,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 14:31:24,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3585 transitions. [2020-10-12 14:31:24,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2020-10-12 14:31:24,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:31:24,038 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:31:24,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:31:24,038 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:31:24,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:31:24,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1670352690, now seen corresponding path program 1 times [2020-10-12 14:31:24,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:31:24,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728830482] [2020-10-12 14:31:24,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:31:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:24,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:24,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:25,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:28,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:29,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:29,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 507 [2020-10-12 14:31:29,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:31:29,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-12 14:31:29,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:29,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:31:29,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:31:29,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:31:29,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:29,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:29,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:29,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:29,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:29,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:31:29,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:31:29,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:29,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:29,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:29,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:29,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:31:29,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:29,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 14:31:29,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:29,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 14:31:29,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:29,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 14:31:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:29,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:29,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:29,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:31:29,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:29,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 14:31:29,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:31:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:29,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:29,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-12 14:31:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:29,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:29,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:29,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:31:29,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:29,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 14:31:29,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:31:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:29,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:29,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-12 14:31:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:29,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:29,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:29,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:31:29,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:29,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:31:29,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:29,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:29,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 14:31:29,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:29,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:29,997 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 132 proven. 285 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2020-10-12 14:31:29,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728830482] [2020-10-12 14:31:29,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:31:29,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:31:29,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38305936] [2020-10-12 14:31:29,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:31:29,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:29,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:31:30,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:31:30,000 INFO L87 Difference]: Start difference. First operand 2806 states and 3585 transitions. Second operand 7 states. [2020-10-12 14:31:34,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:31:34,765 INFO L93 Difference]: Finished difference Result 8463 states and 11099 transitions. [2020-10-12 14:31:34,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:31:34,768 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 491 [2020-10-12 14:31:34,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:31:34,796 INFO L225 Difference]: With dead ends: 8463 [2020-10-12 14:31:34,796 INFO L226 Difference]: Without dead ends: 5663 [2020-10-12 14:31:34,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:31:34,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5663 states. [2020-10-12 14:31:34,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5663 to 5632. [2020-10-12 14:31:34,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5632 states. [2020-10-12 14:31:34,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5632 states to 5632 states and 7174 transitions. [2020-10-12 14:31:34,935 INFO L78 Accepts]: Start accepts. Automaton has 5632 states and 7174 transitions. Word has length 491 [2020-10-12 14:31:34,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:31:34,936 INFO L479 AbstractCegarLoop]: Abstraction has 5632 states and 7174 transitions. [2020-10-12 14:31:34,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:31:34,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5632 states and 7174 transitions. [2020-10-12 14:31:34,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2020-10-12 14:31:34,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:31:34,955 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:31:34,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:31:34,955 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:31:34,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:31:34,956 INFO L82 PathProgramCache]: Analyzing trace with hash -2123887672, now seen corresponding path program 1 times [2020-10-12 14:31:34,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:31:34,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557169043] [2020-10-12 14:31:34,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:31:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:35,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:35,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:35,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:40,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:40,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 556 [2020-10-12 14:31:40,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:31:40,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-12 14:31:40,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:40,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:31:40,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:31:40,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-12 14:31:40,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:31:40,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:40,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:40,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:40,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:40,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:40,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:31:40,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:40,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:40,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:40,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:31:40,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:31:40,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:40,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:40,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:41,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:41,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:31:41,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:31:41,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-10-12 14:31:41,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:41,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:31:41,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:31:41,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:43,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-12 14:31:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:43,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:43,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:43,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:31:43,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:43,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:31:43,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:31:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:43,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:43,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-12 14:31:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:43,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:43,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:43,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-12 14:31:43,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:43,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:31:43,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:43,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:43,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-12 14:31:43,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:43,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 99 proven. 243 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-10-12 14:31:45,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557169043] [2020-10-12 14:31:45,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:31:45,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:31:45,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930738354] [2020-10-12 14:31:45,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:31:45,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:45,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:31:45,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:31:45,749 INFO L87 Difference]: Start difference. First operand 5632 states and 7174 transitions. Second operand 13 states. [2020-10-12 14:31:46,566 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-10-12 14:31:47,090 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2020-10-12 14:31:47,431 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-10-12 14:31:47,763 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-12 14:31:47,987 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-10-12 14:31:48,327 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-12 14:31:48,643 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2020-10-12 14:31:48,798 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-12 14:31:49,020 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2020-10-12 14:31:49,413 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-12 14:31:50,008 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 14:31:50,215 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-12 14:31:50,485 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2020-10-12 14:31:53,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:31:53,109 INFO L93 Difference]: Finished difference Result 11632 states and 14795 transitions. [2020-10-12 14:31:53,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 14:31:53,115 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 542 [2020-10-12 14:31:53,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:31:53,143 INFO L225 Difference]: With dead ends: 11632 [2020-10-12 14:31:53,144 INFO L226 Difference]: Without dead ends: 5914 [2020-10-12 14:31:53,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=254, Invalid=616, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:31:53,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5914 states. [2020-10-12 14:31:53,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5914 to 5890. [2020-10-12 14:31:53,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5890 states. [2020-10-12 14:31:53,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 7452 transitions. [2020-10-12 14:31:53,417 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 7452 transitions. Word has length 542 [2020-10-12 14:31:53,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:31:53,418 INFO L479 AbstractCegarLoop]: Abstraction has 5890 states and 7452 transitions. [2020-10-12 14:31:53,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:31:53,418 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 7452 transitions. [2020-10-12 14:31:53,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2020-10-12 14:31:53,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:31:53,444 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:31:53,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:31:53,445 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:31:53,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:31:53,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1856462288, now seen corresponding path program 1 times [2020-10-12 14:31:53,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:31:53,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63036567] [2020-10-12 14:31:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:31:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:53,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:53,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:54,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:55,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:55,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:58,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:58,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 649 [2020-10-12 14:31:58,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:31:58,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 14:31:58,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:58,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:58,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 609 [2020-10-12 14:31:58,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 14:31:58,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:58,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:58,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:58,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:58,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:58,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:58,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:31:58,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:58,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:58,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:58,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:58,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:58,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:58,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:58,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:58,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:31:58,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:58,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:31:58,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:58,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:58,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:58,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:58,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:58,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:31:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:58,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:58,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:58,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:31:58,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:58,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 14:31:58,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:58,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:58,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:58,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:58,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2020-10-12 14:31:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:58,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:58,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:58,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:31:58,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:58,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:31:58,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:58,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:58,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:58,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:58,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:58,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2020-10-12 14:31:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:59,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:59,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:59,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-12 14:31:59,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:59,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 14:31:59,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 14:31:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:59,316 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2020-10-12 14:31:59,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63036567] [2020-10-12 14:31:59,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:31:59,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:31:59,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695953031] [2020-10-12 14:31:59,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:31:59,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:59,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:31:59,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:31:59,319 INFO L87 Difference]: Start difference. First operand 5890 states and 7452 transitions. Second operand 5 states. [2020-10-12 14:32:02,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:32:02,953 INFO L93 Difference]: Finished difference Result 12895 states and 16925 transitions. [2020-10-12 14:32:02,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:32:02,955 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 633 [2020-10-12 14:32:02,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:32:02,987 INFO L225 Difference]: With dead ends: 12895 [2020-10-12 14:32:02,987 INFO L226 Difference]: Without dead ends: 7255 [2020-10-12 14:32:03,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:32:03,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7255 states. [2020-10-12 14:32:03,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7255 to 7253. [2020-10-12 14:32:03,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7253 states. [2020-10-12 14:32:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7253 states to 7253 states and 9367 transitions. [2020-10-12 14:32:03,179 INFO L78 Accepts]: Start accepts. Automaton has 7253 states and 9367 transitions. Word has length 633 [2020-10-12 14:32:03,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:32:03,181 INFO L479 AbstractCegarLoop]: Abstraction has 7253 states and 9367 transitions. [2020-10-12 14:32:03,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:32:03,181 INFO L276 IsEmpty]: Start isEmpty. Operand 7253 states and 9367 transitions. [2020-10-12 14:32:03,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2020-10-12 14:32:03,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:32:03,201 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, 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, 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, 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, 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] [2020-10-12 14:32:03,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:32:03,201 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:32:03,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:32:03,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1033399856, now seen corresponding path program 1 times [2020-10-12 14:32:03,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:32:03,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095579493] [2020-10-12 14:32:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:32:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:03,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:03,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:04,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:05,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:06,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:06,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:08,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:08,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 729 [2020-10-12 14:32:08,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:32:08,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-12 14:32:08,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:08,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:08,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 469 [2020-10-12 14:32:08,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 221 [2020-10-12 14:32:08,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:32:08,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:32:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:08,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:08,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:08,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:32:08,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:08,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:32:08,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:08,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:32:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:08,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:08,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:08,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:32:08,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:08,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:32:08,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:08,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:08,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:08,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:08,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:32:08,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:32:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:08,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:08,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:08,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:32:08,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:08,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 14:32:08,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:08,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:08,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2020-10-12 14:32:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:08,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:08,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:08,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:32:08,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:08,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 14:32:08,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:32:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:08,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 14:32:08,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:08,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2020-10-12 14:32:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:08,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:09,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:09,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-12 14:32:09,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:09,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-12 14:32:09,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:09,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:09,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:32:09,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 219 [2020-10-12 14:32:09,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:09,606 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 557 proven. 2 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-12 14:32:09,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095579493] [2020-10-12 14:32:09,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:32:09,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:32:09,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878813839] [2020-10-12 14:32:09,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:32:09,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:32:09,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:32:09,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:32:09,610 INFO L87 Difference]: Start difference. First operand 7253 states and 9367 transitions. Second operand 7 states. [2020-10-12 14:32:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:32:14,848 INFO L93 Difference]: Finished difference Result 17687 states and 22918 transitions. [2020-10-12 14:32:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:32:14,849 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 713 [2020-10-12 14:32:14,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:32:14,898 INFO L225 Difference]: With dead ends: 17687 [2020-10-12 14:32:14,898 INFO L226 Difference]: Without dead ends: 9908 [2020-10-12 14:32:14,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:32:14,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9908 states. [2020-10-12 14:32:15,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9908 to 8211. [2020-10-12 14:32:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8211 states. [2020-10-12 14:32:15,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8211 states to 8211 states and 9412 transitions. [2020-10-12 14:32:15,255 INFO L78 Accepts]: Start accepts. Automaton has 8211 states and 9412 transitions. Word has length 713 [2020-10-12 14:32:15,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:32:15,256 INFO L479 AbstractCegarLoop]: Abstraction has 8211 states and 9412 transitions. [2020-10-12 14:32:15,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:32:15,256 INFO L276 IsEmpty]: Start isEmpty. Operand 8211 states and 9412 transitions. [2020-10-12 14:32:15,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2020-10-12 14:32:15,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:32:15,279 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:32:15,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:32:15,279 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:32:15,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:32:15,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1471482791, now seen corresponding path program 1 times [2020-10-12 14:32:15,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:32:15,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766266954] [2020-10-12 14:32:15,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:32:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:15,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:15,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:15,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:20,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:20,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:20,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 869 [2020-10-12 14:32:20,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:32:20,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5193 [2020-10-12 14:32:20,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:20,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:20,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 380 [2020-10-12 14:32:20,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 14:32:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:20,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:32:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:20,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:20,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:20,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:32:20,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:20,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:32:20,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:20,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:20,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:20,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:32:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:20,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:20,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:20,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:32:20,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:20,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:32:20,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:20,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:20,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:32:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:20,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:20,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:20,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:32:20,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:20,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:32:20,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:20,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:32:20,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:20,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 14:32:20,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:20,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:32:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:20,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:21,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:21,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:32:21,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:21,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 14:32:21,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:32:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:32:21,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:21,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:32:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:21,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:21,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:21,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:32:21,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:21,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:32:21,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:21,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:21,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:32:21,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:21,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:21,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:32:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:21,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:21,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:21,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-12 14:32:21,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:21,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 14:32:21,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:21,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:21,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-12 14:32:21,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:21,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:21,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 410 proven. 221 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2020-10-12 14:32:21,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766266954] [2020-10-12 14:32:21,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:32:21,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:32:21,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199214668] [2020-10-12 14:32:21,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:32:21,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:32:21,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:32:21,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:32:21,730 INFO L87 Difference]: Start difference. First operand 8211 states and 9412 transitions. Second operand 7 states. [2020-10-12 14:32:24,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:32:24,889 INFO L93 Difference]: Finished difference Result 19237 states and 22400 transitions. [2020-10-12 14:32:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:32:24,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 851 [2020-10-12 14:32:24,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:32:24,926 INFO L225 Difference]: With dead ends: 19237 [2020-10-12 14:32:24,926 INFO L226 Difference]: Without dead ends: 11276 [2020-10-12 14:32:24,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:32:24,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11276 states. [2020-10-12 14:32:25,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11276 to 11264. [2020-10-12 14:32:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11264 states. [2020-10-12 14:32:25,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11264 states to 11264 states and 12612 transitions. [2020-10-12 14:32:25,195 INFO L78 Accepts]: Start accepts. Automaton has 11264 states and 12612 transitions. Word has length 851 [2020-10-12 14:32:25,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:32:25,196 INFO L479 AbstractCegarLoop]: Abstraction has 11264 states and 12612 transitions. [2020-10-12 14:32:25,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:32:25,197 INFO L276 IsEmpty]: Start isEmpty. Operand 11264 states and 12612 transitions. [2020-10-12 14:32:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 990 [2020-10-12 14:32:25,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:32:25,230 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, 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, 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, 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, 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, 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] [2020-10-12 14:32:25,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:32:25,231 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:32:25,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:32:25,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1005286943, now seen corresponding path program 1 times [2020-10-12 14:32:25,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:32:25,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226732367] [2020-10-12 14:32:25,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:32:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:25,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:25,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:26,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:29,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:30,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:30,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:30,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1007 [2020-10-12 14:32:30,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:32:30,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-12 14:32:30,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-12 14:32:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-12 14:32:30,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:30,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:32:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:30,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:30,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:30,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:32:30,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:30,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:32:30,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:30,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:30,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:30,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:30,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:30,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:32:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:30,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:30,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:30,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:32:30,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:30,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 14:32:30,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:30,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:32:30,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:30,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:32:30,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:30,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:32:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:30,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:30,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:30,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 14:32:30,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:30,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 14:32:30,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:30,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:32:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:32:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:30,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-12 14:32:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:30,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:30,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:30,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-12 14:32:30,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:30,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 14:32:30,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:30,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:30,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 260 [2020-10-12 14:32:30,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:30,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:31,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 672 [2020-10-12 14:32:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:31,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:31,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:31,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:32:31,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:31,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:32:31,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:31,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:31,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:32:31,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:31,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:31,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 782 [2020-10-12 14:32:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:31,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:31,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:31,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:32:31,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:31,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:32:31,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:31,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:31,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:32:31,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:31,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:32,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 337 proven. 429 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2020-10-12 14:32:32,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226732367] [2020-10-12 14:32:32,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:32:32,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:32:32,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615518450] [2020-10-12 14:32:32,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:32:32,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:32:32,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:32:32,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:32:32,195 INFO L87 Difference]: Start difference. First operand 11264 states and 12612 transitions. Second operand 7 states. [2020-10-12 14:32:35,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:32:35,270 INFO L93 Difference]: Finished difference Result 25332 states and 28669 transitions. [2020-10-12 14:32:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:32:35,272 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 989 [2020-10-12 14:32:35,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:32:35,326 INFO L225 Difference]: With dead ends: 25332 [2020-10-12 14:32:35,326 INFO L226 Difference]: Without dead ends: 14318 [2020-10-12 14:32:35,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:32:35,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14318 states. [2020-10-12 14:32:35,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14318 to 14312. [2020-10-12 14:32:35,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14312 states. [2020-10-12 14:32:35,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14312 states to 14312 states and 16107 transitions. [2020-10-12 14:32:35,623 INFO L78 Accepts]: Start accepts. Automaton has 14312 states and 16107 transitions. Word has length 989 [2020-10-12 14:32:35,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:32:35,624 INFO L479 AbstractCegarLoop]: Abstraction has 14312 states and 16107 transitions. [2020-10-12 14:32:35,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:32:35,624 INFO L276 IsEmpty]: Start isEmpty. Operand 14312 states and 16107 transitions. [2020-10-12 14:32:35,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1248 [2020-10-12 14:32:35,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:32:35,665 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:32:35,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:32:35,665 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:32:35,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:32:35,666 INFO L82 PathProgramCache]: Analyzing trace with hash 2123766671, now seen corresponding path program 1 times [2020-10-12 14:32:35,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:32:35,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529868443] [2020-10-12 14:32:35,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:32:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:35,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:36,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:36,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:37,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:40,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:40,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:40,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1269 [2020-10-12 14:32:40,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:32:40,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-12 14:32:40,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:40,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:40,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 571 [2020-10-12 14:32:40,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 14:32:40,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:40,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:32:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:40,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:40,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:40,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:32:40,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:40,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:32:40,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:40,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:40,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:40,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:32:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:41,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:41,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:41,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:32:41,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:41,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:32:41,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:41,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:41,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:32:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:41,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:41,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:41,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:32:41,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:41,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-12 14:32:41,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:41,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:41,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:41,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:41,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:41,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-12 14:32:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:41,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:41,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:41,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:32:41,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:41,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:32:41,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:41,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:32:41,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:41,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 14:32:41,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:41,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2020-10-12 14:32:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:41,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:41,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:41,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:32:41,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:41,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 14:32:41,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:41,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:32:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:32:41,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:41,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 680 [2020-10-12 14:32:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:41,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:41,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:41,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:32:41,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:41,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 14:32:41,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:41,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:41,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-12 14:32:41,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:41,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:41,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-12 14:32:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:41,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:41,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:41,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:32:41,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:41,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:32:41,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:41,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:41,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:32:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:41,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:41,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1040 [2020-10-12 14:32:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:41,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:41,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:41,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:32:41,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:32:41,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:32:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:41,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:42,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2907 backedges. 567 proven. 333 refuted. 0 times theorem prover too weak. 2007 trivial. 0 not checked. [2020-10-12 14:32:42,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529868443] [2020-10-12 14:32:42,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:32:42,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:32:42,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767522388] [2020-10-12 14:32:42,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:32:42,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:32:42,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:32:42,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:32:42,378 INFO L87 Difference]: Start difference. First operand 14312 states and 16107 transitions. Second operand 7 states. [2020-10-12 14:32:45,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:32:45,855 INFO L93 Difference]: Finished difference Result 31433 states and 35688 transitions. [2020-10-12 14:32:45,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:32:45,857 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1247 [2020-10-12 14:32:45,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:32:45,907 INFO L225 Difference]: With dead ends: 31433 [2020-10-12 14:32:45,907 INFO L226 Difference]: Without dead ends: 17371 [2020-10-12 14:32:45,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:32:45,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17371 states. [2020-10-12 14:32:46,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17371 to 17022. [2020-10-12 14:32:46,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17022 states. [2020-10-12 14:32:46,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17022 states to 17022 states and 18647 transitions. [2020-10-12 14:32:46,229 INFO L78 Accepts]: Start accepts. Automaton has 17022 states and 18647 transitions. Word has length 1247 [2020-10-12 14:32:46,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:32:46,230 INFO L479 AbstractCegarLoop]: Abstraction has 17022 states and 18647 transitions. [2020-10-12 14:32:46,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:32:46,231 INFO L276 IsEmpty]: Start isEmpty. Operand 17022 states and 18647 transitions. [2020-10-12 14:32:46,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1249 [2020-10-12 14:32:46,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:32:46,273 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:32:46,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:32:46,274 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:32:46,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:32:46,274 INFO L82 PathProgramCache]: Analyzing trace with hash 191476274, now seen corresponding path program 1 times [2020-10-12 14:32:46,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:32:46,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367992357] [2020-10-12 14:32:46,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:32:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:46,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:46,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:46,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:47,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:48,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:51,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:51,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1270 [2020-10-12 14:32:51,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:32:51,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-12 14:32:51,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:51,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:32:51,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:32:51,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 496 [2020-10-12 14:32:51,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:51,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:32:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:51,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:51,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:51,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:32:51,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:51,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:32:51,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:51,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:32:51,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:32:51,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:32:51,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:51,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:32:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:51,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:51,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:51,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:32:51,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:51,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-12 14:32:51,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:51,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:51,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:32:51,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 240 [2020-10-12 14:32:51,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:51,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:32:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:51,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:52,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:52,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:32:52,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:52,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-12 14:32:52,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:32:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:32:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:32:52,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:52,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-12 14:32:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:52,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:52,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:52,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:32:52,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:52,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:32:52,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:52,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:52,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-12 14:32:52,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:52,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:52,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2020-10-12 14:32:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:52,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:52,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:52,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:32:52,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:52,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:32:52,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:52,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:52,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:32:52,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:52,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:52,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 681 [2020-10-12 14:32:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:52,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:52,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:52,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:32:52,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:52,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 14:32:52,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-12 14:32:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:52,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:52,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 931 [2020-10-12 14:32:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:52,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:52,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:52,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:32:52,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:52,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:32:52,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:52,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:52,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:32:52,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:52,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:52,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1041 [2020-10-12 14:32:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:52,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:52,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:32:52,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:32:52,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:32:52,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:32:52,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:32:52,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:32:52,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:32:52,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:32:52,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:32:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2913 backedges. 252 proven. 1380 refuted. 0 times theorem prover too weak. 1281 trivial. 0 not checked. [2020-10-12 14:32:53,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367992357] [2020-10-12 14:32:53,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:32:53,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:32:53,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081587359] [2020-10-12 14:32:53,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:32:53,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:32:53,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:32:53,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:32:53,615 INFO L87 Difference]: Start difference. First operand 17022 states and 18647 transitions. Second operand 7 states. [2020-10-12 14:32:56,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:32:56,489 INFO L93 Difference]: Finished difference Result 34149 states and 37436 transitions. [2020-10-12 14:32:56,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:32:56,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1248 [2020-10-12 14:32:56,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:32:56,529 INFO L225 Difference]: With dead ends: 34149 [2020-10-12 14:32:56,529 INFO L226 Difference]: Without dead ends: 17377 [2020-10-12 14:32:56,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:32:56,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17377 states. [2020-10-12 14:32:56,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17377 to 17367. [2020-10-12 14:32:56,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17367 states. [2020-10-12 14:32:56,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17367 states to 17367 states and 19015 transitions. [2020-10-12 14:32:56,860 INFO L78 Accepts]: Start accepts. Automaton has 17367 states and 19015 transitions. Word has length 1248 [2020-10-12 14:32:56,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:32:56,862 INFO L479 AbstractCegarLoop]: Abstraction has 17367 states and 19015 transitions. [2020-10-12 14:32:56,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:32:56,862 INFO L276 IsEmpty]: Start isEmpty. Operand 17367 states and 19015 transitions. [2020-10-12 14:32:56,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1257 [2020-10-12 14:32:56,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:32:56,904 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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] [2020-10-12 14:32:56,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:32:56,905 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:32:56,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:32:56,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1004392254, now seen corresponding path program 1 times [2020-10-12 14:32:56,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:32:56,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220007569] [2020-10-12 14:32:56,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:32:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:32:57,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:57,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:57,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:57,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:32:59,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:00,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:02,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:02,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1278 [2020-10-12 14:33:02,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:33:02,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-12 14:33:02,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:02,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:33:02,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:33:02,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-12 14:33:02,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:02,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:02,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:02,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:02,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:02,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:02,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:33:02,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:02,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:33:02,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:02,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:02,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:02,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:02,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:02,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:33:02,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:33:02,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-12 14:33:02,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:02,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:02,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:02,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-12 14:33:02,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:02,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:33:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:02,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:03,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:03,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:33:03,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-12 14:33:03,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:33:03,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:03,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-12 14:33:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:03,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:03,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:03,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:33:03,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:03,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:33:03,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:03,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:03,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-12 14:33:03,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:03,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:03,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2020-10-12 14:33:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:03,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:03,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:33:03,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:03,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:33:03,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:03,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:33:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:03,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:03,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2020-10-12 14:33:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:03,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:03,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:03,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:33:03,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:03,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 14:33:03,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:03,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:03,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-12 14:33:03,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:03,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:03,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 939 [2020-10-12 14:33:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:03,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:03,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:03,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:33:03,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:03,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:33:03,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:33:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:03,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:03,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1049 [2020-10-12 14:33:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:03,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:03,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:03,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:33:03,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:33:03,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:33:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2929 backedges. 252 proven. 1388 refuted. 0 times theorem prover too weak. 1289 trivial. 0 not checked. [2020-10-12 14:33:06,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220007569] [2020-10-12 14:33:06,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:33:06,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:33:06,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467213165] [2020-10-12 14:33:06,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:33:06,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:06,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:33:06,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:33:06,182 INFO L87 Difference]: Start difference. First operand 17367 states and 19015 transitions. Second operand 7 states. [2020-10-12 14:33:08,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:08,834 INFO L93 Difference]: Finished difference Result 34488 states and 37778 transitions. [2020-10-12 14:33:08,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:33:08,835 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1256 [2020-10-12 14:33:08,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:08,874 INFO L225 Difference]: With dead ends: 34488 [2020-10-12 14:33:08,874 INFO L226 Difference]: Without dead ends: 17710 [2020-10-12 14:33:08,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:33:08,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17710 states. [2020-10-12 14:33:09,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17710 to 17704. [2020-10-12 14:33:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17704 states. [2020-10-12 14:33:09,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17704 states to 17704 states and 19359 transitions. [2020-10-12 14:33:09,184 INFO L78 Accepts]: Start accepts. Automaton has 17704 states and 19359 transitions. Word has length 1256 [2020-10-12 14:33:09,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:09,185 INFO L479 AbstractCegarLoop]: Abstraction has 17704 states and 19359 transitions. [2020-10-12 14:33:09,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:33:09,185 INFO L276 IsEmpty]: Start isEmpty. Operand 17704 states and 19359 transitions. [2020-10-12 14:33:09,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1291 [2020-10-12 14:33:09,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:09,221 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, 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, 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, 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, 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, 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] [2020-10-12 14:33:09,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:33:09,221 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:09,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:09,222 INFO L82 PathProgramCache]: Analyzing trace with hash 599374747, now seen corresponding path program 1 times [2020-10-12 14:33:09,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:09,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976268524] [2020-10-12 14:33:09,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:09,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:09,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:10,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:10,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:14,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:14,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1314 [2020-10-12 14:33:14,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:33:14,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5098 [2020-10-12 14:33:14,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1097 [2020-10-12 14:33:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:33:14,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:14,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:14,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:14,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:14,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:14,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:14,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:33:14,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:14,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:14,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:14,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:14,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:14,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:14,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:14,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:14,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:33:14,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:14,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:33:14,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:14,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:14,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:33:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:14,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:14,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:14,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:33:14,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:14,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:33:14,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:14,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:14,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:14,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:14,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:14,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:33:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:14,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:15,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:15,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:33:15,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:15,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:33:15,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:15,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:15,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:15,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:15,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:33:15,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:33:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:15,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:15,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:15,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:33:15,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:15,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:33:15,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:15,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:15,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:15,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:15,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:15,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:33:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:15,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:15,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:15,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:33:15,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:15,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:33:15,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:15,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:15,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:15,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:15,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:15,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-12 14:33:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:15,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:15,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:15,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:33:15,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:15,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:33:15,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:15,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:15,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:15,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:15,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:15,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2020-10-12 14:33:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:15,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:15,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:15,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:33:15,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:15,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 14:33:15,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:15,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:15,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:15,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:33:15,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:15,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1083 [2020-10-12 14:33:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:15,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:15,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:15,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:33:15,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:15,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-12 14:33:15,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 14:33:15,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:16,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3580 backedges. 1209 proven. 2 refuted. 0 times theorem prover too weak. 2369 trivial. 0 not checked. [2020-10-12 14:33:16,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976268524] [2020-10-12 14:33:16,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:33:16,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:33:16,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023340266] [2020-10-12 14:33:16,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:33:16,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:16,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:33:16,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:33:16,595 INFO L87 Difference]: Start difference. First operand 17704 states and 19359 transitions. Second operand 7 states. [2020-10-12 14:33:19,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:19,809 INFO L93 Difference]: Finished difference Result 35190 states and 38545 transitions. [2020-10-12 14:33:19,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:33:19,810 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1290 [2020-10-12 14:33:19,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:19,843 INFO L225 Difference]: With dead ends: 35190 [2020-10-12 14:33:19,843 INFO L226 Difference]: Without dead ends: 17723 [2020-10-12 14:33:19,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:33:19,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17723 states. [2020-10-12 14:33:20,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17723 to 16676. [2020-10-12 14:33:20,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16676 states. [2020-10-12 14:33:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16676 states to 16676 states and 17807 transitions. [2020-10-12 14:33:20,099 INFO L78 Accepts]: Start accepts. Automaton has 16676 states and 17807 transitions. Word has length 1290 [2020-10-12 14:33:20,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:20,100 INFO L479 AbstractCegarLoop]: Abstraction has 16676 states and 17807 transitions. [2020-10-12 14:33:20,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:33:20,100 INFO L276 IsEmpty]: Start isEmpty. Operand 16676 states and 17807 transitions. [2020-10-12 14:33:20,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1427 [2020-10-12 14:33:20,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:20,130 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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] [2020-10-12 14:33:20,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:33:20,130 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:20,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:20,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1310934606, now seen corresponding path program 1 times [2020-10-12 14:33:20,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:20,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918116642] [2020-10-12 14:33:20,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:20,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:20,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:21,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:24,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1452 [2020-10-12 14:33:25,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:33:25,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 14:33:25,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:25,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-12 14:33:25,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-12 14:33:25,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:25,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:25,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:25,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:25,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:33:25,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:25,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:25,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:25,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:25,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:25,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:33:25,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:25,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:33:25,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:25,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:25,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:33:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:25,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:33:25,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:25,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:33:25,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:25,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:25,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:25,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:25,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:33:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:25,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:33:25,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:25,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:33:25,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:25,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:25,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:33:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:25,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:33:25,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:25,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:33:25,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:25,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:25,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 14:33:25,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:25,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:33:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:25,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:25,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:25,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:33:25,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:25,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-12 14:33:25,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:25,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:25,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:25,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-12 14:33:25,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:26,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-12 14:33:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:26,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:26,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:26,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:33:26,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:26,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 14:33:26,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:26,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:26,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:33:26,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:26,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:26,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2020-10-12 14:33:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:26,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:26,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:26,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:33:26,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:26,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:33:26,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:26,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:26,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:33:26,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:26,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:26,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-12 14:33:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:26,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:26,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:26,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:33:26,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:26,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-12 14:33:26,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:26,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:26,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:33:26,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:26,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:26,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1219 [2020-10-12 14:33:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:26,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:26,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:26,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:33:26,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:26,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:33:26,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:26,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:26,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:33:26,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:26,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4738 backedges. 851 proven. 530 refuted. 0 times theorem prover too weak. 3357 trivial. 0 not checked. [2020-10-12 14:33:27,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918116642] [2020-10-12 14:33:27,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:33:27,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:33:27,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145827117] [2020-10-12 14:33:27,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:33:27,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:27,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:33:27,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:33:27,345 INFO L87 Difference]: Start difference. First operand 16676 states and 17807 transitions. Second operand 7 states. [2020-10-12 14:33:30,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:30,621 INFO L93 Difference]: Finished difference Result 32785 states and 35056 transitions. [2020-10-12 14:33:30,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:33:30,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1426 [2020-10-12 14:33:30,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:30,649 INFO L225 Difference]: With dead ends: 32785 [2020-10-12 14:33:30,650 INFO L226 Difference]: Without dead ends: 16698 [2020-10-12 14:33:30,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:33:30,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16698 states. [2020-10-12 14:33:30,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16698 to 15998. [2020-10-12 14:33:30,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15998 states. [2020-10-12 14:33:30,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15998 states to 15998 states and 16829 transitions. [2020-10-12 14:33:30,906 INFO L78 Accepts]: Start accepts. Automaton has 15998 states and 16829 transitions. Word has length 1426 [2020-10-12 14:33:30,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:30,907 INFO L479 AbstractCegarLoop]: Abstraction has 15998 states and 16829 transitions. [2020-10-12 14:33:30,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:33:30,907 INFO L276 IsEmpty]: Start isEmpty. Operand 15998 states and 16829 transitions. [2020-10-12 14:33:30,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1602 [2020-10-12 14:33:30,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:30,948 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, 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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] [2020-10-12 14:33:30,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:33:30,949 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:30,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:30,949 INFO L82 PathProgramCache]: Analyzing trace with hash -762405536, now seen corresponding path program 1 times [2020-10-12 14:33:30,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:30,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546224865] [2020-10-12 14:33:30,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:31,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:31,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:31,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:36,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:36,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1625 [2020-10-12 14:33:36,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:33:36,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5673 [2020-10-12 14:33:36,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:36,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:36,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-12 14:33:36,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-12 14:33:36,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:36,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:36,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:36,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:36,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:36,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:33:36,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:36,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:37,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:37,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:37,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:33:37,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:37,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-12 14:33:37,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:37,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:37,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:37,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:33:37,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:37,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:33:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:37,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:37,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:37,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:33:37,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:37,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-12 14:33:37,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:37,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:37,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:37,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-12 14:33:37,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:37,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:33:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:37,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:37,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:37,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:33:37,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:37,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:33:37,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:37,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:33:37,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:37,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:37,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:33:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:37,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:37,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:37,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:33:37,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:37,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 14:33:37,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:37,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:37,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-12 14:33:37,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:37,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:38,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-12 14:33:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:38,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:38,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:38,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:33:38,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:38,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-12 14:33:38,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:38,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:38,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:33:38,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:38,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:38,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-12 14:33:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:38,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:38,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:38,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:33:38,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:38,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-12 14:33:38,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:38,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:33:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:38,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:38,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1221 [2020-10-12 14:33:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:38,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:38,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:38,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:33:38,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:38,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 14:33:38,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:33:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:38,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:33:38,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1396 [2020-10-12 14:33:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:38,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:38,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:38,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:33:38,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:38,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 14:33:38,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:38,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:38,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-12 14:33:38,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-10-12 14:33:41,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4958 backedges. 447 proven. 923 refuted. 0 times theorem prover too weak. 3588 trivial. 0 not checked. [2020-10-12 14:33:41,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546224865] [2020-10-12 14:33:41,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:33:41,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:33:41,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955507988] [2020-10-12 14:33:41,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:33:41,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:41,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:33:41,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:33:41,135 INFO L87 Difference]: Start difference. First operand 15998 states and 16829 transitions. Second operand 7 states. [2020-10-12 14:33:44,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:44,221 INFO L93 Difference]: Finished difference Result 33108 states and 34879 transitions. [2020-10-12 14:33:44,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:33:44,222 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1601 [2020-10-12 14:33:44,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:44,247 INFO L225 Difference]: With dead ends: 33108 [2020-10-12 14:33:44,247 INFO L226 Difference]: Without dead ends: 17699 [2020-10-12 14:33:44,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:33:44,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17699 states. [2020-10-12 14:33:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17699 to 17017. [2020-10-12 14:33:44,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17017 states. [2020-10-12 14:33:44,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17017 states to 17017 states and 17887 transitions. [2020-10-12 14:33:44,484 INFO L78 Accepts]: Start accepts. Automaton has 17017 states and 17887 transitions. Word has length 1601 [2020-10-12 14:33:44,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:44,484 INFO L479 AbstractCegarLoop]: Abstraction has 17017 states and 17887 transitions. [2020-10-12 14:33:44,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:33:44,484 INFO L276 IsEmpty]: Start isEmpty. Operand 17017 states and 17887 transitions. [2020-10-12 14:33:44,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1663 [2020-10-12 14:33:44,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:44,521 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, 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:33:44,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:33:44,521 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:44,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:44,522 INFO L82 PathProgramCache]: Analyzing trace with hash 39399929, now seen corresponding path program 1 times [2020-10-12 14:33:44,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:44,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952905193] [2020-10-12 14:33:44,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:44,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:45,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:45,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:46,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:49,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:49,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1686 [2020-10-12 14:33:49,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:33:49,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5084 [2020-10-12 14:33:49,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:49,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1294 [2020-10-12 14:33:49,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:33:49,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:50,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:50,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:50,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:50,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:50,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:50,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:33:50,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:50,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:50,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:50,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:50,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:50,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:33:50,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:50,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:33:50,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:50,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:50,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:50,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:50,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:50,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:33:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:50,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:50,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:50,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:33:50,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:50,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:33:50,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:50,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:50,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:50,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:50,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:50,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:33:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:50,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:50,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:50,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:33:50,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:50,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:33:50,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:50,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:50,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:50,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:50,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:33:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:50,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:50,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:50,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:33:50,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:50,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:33:50,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:50,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:50,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:50,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:50,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:50,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-12 14:33:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:50,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:50,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:50,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:33:50,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:50,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:33:50,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:50,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:50,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:33:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:50,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:50,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:50,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:33:50,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:50,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 14:33:50,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:50,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-12 14:33:50,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:50,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1282 [2020-10-12 14:33:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:50,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:50,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:50,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:33:50,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:50,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-12 14:33:50,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 14:33:50,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:50,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1457 [2020-10-12 14:33:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:50,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:51,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:51,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:33:51,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:51,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:33:51,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:51,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:51,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-12 14:33:51,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:51,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:52,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5190 backedges. 1299 proven. 172 refuted. 0 times theorem prover too weak. 3719 trivial. 0 not checked. [2020-10-12 14:33:52,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952905193] [2020-10-12 14:33:52,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:33:52,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:33:52,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370533222] [2020-10-12 14:33:52,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:33:52,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:52,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:33:52,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:33:52,252 INFO L87 Difference]: Start difference. First operand 17017 states and 17887 transitions. Second operand 7 states. [2020-10-12 14:33:56,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:56,295 INFO L93 Difference]: Finished difference Result 35496 states and 37321 transitions. [2020-10-12 14:33:56,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:33:56,296 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1662 [2020-10-12 14:33:56,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:56,326 INFO L225 Difference]: With dead ends: 35496 [2020-10-12 14:33:56,326 INFO L226 Difference]: Without dead ends: 18729 [2020-10-12 14:33:56,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:33:56,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18729 states. [2020-10-12 14:33:56,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18729 to 18388. [2020-10-12 14:33:56,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18388 states. [2020-10-12 14:33:56,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18388 states to 18388 states and 19172 transitions. [2020-10-12 14:33:56,586 INFO L78 Accepts]: Start accepts. Automaton has 18388 states and 19172 transitions. Word has length 1662 [2020-10-12 14:33:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:56,588 INFO L479 AbstractCegarLoop]: Abstraction has 18388 states and 19172 transitions. [2020-10-12 14:33:56,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:33:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 18388 states and 19172 transitions. [2020-10-12 14:33:56,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1875 [2020-10-12 14:33:56,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:56,651 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 10, 10, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:33:56,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:33:56,651 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:56,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:56,652 INFO L82 PathProgramCache]: Analyzing trace with hash 204977417, now seen corresponding path program 1 times [2020-10-12 14:33:56,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:56,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083634717] [2020-10-12 14:33:56,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:57,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:57,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:57,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:02,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:02,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1902 [2020-10-12 14:34:02,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:34:02,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5454 [2020-10-12 14:34:02,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:02,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:02,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-12 14:34:02,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 14:34:02,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:02,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:02,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:02,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:02,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:02,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:02,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:34:02,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:02,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:02,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:02,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:02,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:02,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:34:02,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:02,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:34:02,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:02,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:02,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:02,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:02,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:02,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:34:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:02,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:02,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:02,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:34:02,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:02,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-12 14:34:02,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:02,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:02,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:02,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 14:34:02,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:02,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:34:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:02,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:02,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:02,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:34:02,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:02,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 14:34:02,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:02,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:02,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:02,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 14:34:02,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:03,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:34:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:03,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:03,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:03,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:34:03,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:03,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:34:03,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-12 14:34:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:03,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:03,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-12 14:34:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:03,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:03,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:03,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:34:03,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:34:03,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:34:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:03,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:34:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:03,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:03,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:03,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:34:03,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:03,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:34:03,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:03,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:03,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-12 14:34:03,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:03,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:03,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-12 14:34:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:03,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:03,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:03,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:34:04,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:04,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:34:04,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:04,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:04,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-12 14:34:04,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:04,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:04,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1250 [2020-10-12 14:34:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:04,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:04,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:04,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 14:34:04,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:04,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 14:34:04,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-12 14:34:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:04,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:04,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1504 [2020-10-12 14:34:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:04,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:04,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:04,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-12 14:34:04,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:04,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:34:04,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-12 14:34:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:04,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:04,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1669 [2020-10-12 14:34:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:04,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:04,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:04,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:34:04,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:04,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:34:04,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:04,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-12 14:34:04,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:04,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:05,824 INFO L134 CoverageAnalysis]: Checked inductivity of 6804 backedges. 643 proven. 809 refuted. 0 times theorem prover too weak. 5352 trivial. 0 not checked. [2020-10-12 14:34:05,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083634717] [2020-10-12 14:34:05,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:34:05,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:34:05,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719942937] [2020-10-12 14:34:05,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:34:05,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:05,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:34:05,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:34:05,827 INFO L87 Difference]: Start difference. First operand 18388 states and 19172 transitions. Second operand 7 states. [2020-10-12 14:34:09,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:09,687 INFO L93 Difference]: Finished difference Result 39245 states and 40909 transitions. [2020-10-12 14:34:09,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:34:09,688 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1874 [2020-10-12 14:34:09,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:09,719 INFO L225 Difference]: With dead ends: 39245 [2020-10-12 14:34:09,719 INFO L226 Difference]: Without dead ends: 21446 [2020-10-12 14:34:09,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:34:09,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21446 states. [2020-10-12 14:34:09,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21446 to 20764. [2020-10-12 14:34:09,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20764 states. [2020-10-12 14:34:09,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20764 states to 20764 states and 21607 transitions. [2020-10-12 14:34:09,994 INFO L78 Accepts]: Start accepts. Automaton has 20764 states and 21607 transitions. Word has length 1874 [2020-10-12 14:34:09,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:09,995 INFO L479 AbstractCegarLoop]: Abstraction has 20764 states and 21607 transitions. [2020-10-12 14:34:09,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:34:09,995 INFO L276 IsEmpty]: Start isEmpty. Operand 20764 states and 21607 transitions. [2020-10-12 14:34:10,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1877 [2020-10-12 14:34:10,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:10,039 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 10, 10, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:34:10,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:34:10,040 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:10,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:10,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1344655077, now seen corresponding path program 1 times [2020-10-12 14:34:10,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:10,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379325483] [2020-10-12 14:34:10,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:10,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:10,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:11,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:11,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:15,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:15,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1904 [2020-10-12 14:34:15,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:34:15,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5138 [2020-10-12 14:34:15,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:15,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:15,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1864 [2020-10-12 14:34:15,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 14:34:15,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:15,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:15,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:15,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:15,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:15,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:15,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:34:15,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:15,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:15,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:15,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:15,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:15,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:15,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:15,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:15,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:34:15,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:15,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:34:15,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:15,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:15,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:34:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:15,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:15,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:15,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 14:34:15,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:15,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:34:15,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:15,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:15,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-12 14:34:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:15,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:15,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:15,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:34:15,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:15,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:34:15,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:15,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:15,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:34:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:15,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:15,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:15,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:34:15,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:15,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:34:15,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:15,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:15,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:15,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:15,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:15,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-12 14:34:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:15,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:16,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:16,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:34:16,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:16,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:34:16,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:16,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:16,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:16,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:16,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:16,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1069 [2020-10-12 14:34:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:16,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:16,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:16,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:34:16,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:16,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:34:16,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:16,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:16,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1181 [2020-10-12 14:34:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:16,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:16,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:16,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:34:16,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:16,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:34:16,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:16,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:16,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:16,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:16,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:16,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1252 [2020-10-12 14:34:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:16,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:16,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:16,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 14:34:16,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:16,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:34:16,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:16,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:16,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:16,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:16,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:16,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1506 [2020-10-12 14:34:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:16,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:16,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:16,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-12 14:34:16,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:16,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 14:34:16,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:16,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:16,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:16,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:16,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:16,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1671 [2020-10-12 14:34:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:16,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:16,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:16,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:34:16,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:16,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 14:34:16,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:16,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:16,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:16,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-12 14:34:16,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0