/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/Problem14_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 13:51:18,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 13:51:18,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 13:51:18,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 13:51:18,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 13:51:18,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 13:51:18,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 13:51:18,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 13:51:18,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 13:51:18,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 13:51:18,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 13:51:18,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 13:51:18,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 13:51:18,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 13:51:18,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 13:51:18,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 13:51:18,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 13:51:18,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 13:51:18,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 13:51:18,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 13:51:18,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 13:51:18,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 13:51:18,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 13:51:18,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 13:51:18,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 13:51:18,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 13:51:18,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 13:51:18,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 13:51:18,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 13:51:18,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 13:51:18,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 13:51:18,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 13:51:18,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 13:51:18,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 13:51:18,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 13:51:18,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 13:51:18,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 13:51:18,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 13:51:18,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 13:51:18,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 13:51:18,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 13:51:18,649 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 13:51:18,672 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 13:51:18,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 13:51:18,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 13:51:18,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 13:51:18,674 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 13:51:18,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 13:51:18,674 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 13:51:18,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 13:51:18,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 13:51:18,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 13:51:18,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 13:51:18,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 13:51:18,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 13:51:18,676 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 13:51:18,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 13:51:18,676 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 13:51:18,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 13:51:18,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 13:51:18,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 13:51:18,677 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 13:51:18,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 13:51:18,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:51:18,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 13:51:18,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 13:51:18,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 13:51:18,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 13:51:18,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 13:51:18,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 13:51:18,679 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 13:51:18,679 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 13:51:19,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 13:51:19,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 13:51:19,035 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 13:51:19,038 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 13:51:19,039 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 13:51:19,040 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label06.c [2020-10-12 13:51:19,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/927ee7d5c/c483cada7c244b23b71b03339d099c39/FLAGf3e968b81 [2020-10-12 13:51:19,793 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 13:51:19,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label06.c [2020-10-12 13:51:19,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/927ee7d5c/c483cada7c244b23b71b03339d099c39/FLAGf3e968b81 [2020-10-12 13:51:19,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/927ee7d5c/c483cada7c244b23b71b03339d099c39 [2020-10-12 13:51:19,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 13:51:19,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 13:51:19,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 13:51:19,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 13:51:19,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 13:51:19,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:51:19" (1/1) ... [2020-10-12 13:51:19,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad15a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:51:19, skipping insertion in model container [2020-10-12 13:51:19,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:51:19" (1/1) ... [2020-10-12 13:51:19,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 13:51:20,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 13:51:20,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:51:20,541 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 13:51:20,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:51:20,962 INFO L208 MainTranslator]: Completed translation [2020-10-12 13:51:20,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:51:20 WrapperNode [2020-10-12 13:51:20,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 13:51:20,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 13:51:20,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 13:51:20,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 13:51:20,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:51:20" (1/1) ... [2020-10-12 13:51:20,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:51:20" (1/1) ... [2020-10-12 13:51:21,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:51:20" (1/1) ... [2020-10-12 13:51:21,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:51:20" (1/1) ... [2020-10-12 13:51:21,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:51:20" (1/1) ... [2020-10-12 13:51:21,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:51:20" (1/1) ... [2020-10-12 13:51:21,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:51:20" (1/1) ... [2020-10-12 13:51:21,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 13:51:21,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 13:51:21,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 13:51:21,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 13:51:21,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:51:20" (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 13:51:21,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 13:51:21,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 13:51:21,218 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 13:51:21,219 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 13:51:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 13:51:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 13:51:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 13:51:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 13:51:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 13:51:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 13:51:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 13:51:22,862 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 13:51:22,863 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 13:51:22,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:51:22 BoogieIcfgContainer [2020-10-12 13:51:22,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 13:51:22,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 13:51:22,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 13:51:22,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 13:51:22,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 01:51:19" (1/3) ... [2020-10-12 13:51:22,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a88e79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:51:22, skipping insertion in model container [2020-10-12 13:51:22,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:51:20" (2/3) ... [2020-10-12 13:51:22,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a88e79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:51:22, skipping insertion in model container [2020-10-12 13:51:22,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:51:22" (3/3) ... [2020-10-12 13:51:22,881 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label06.c [2020-10-12 13:51:22,893 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 13:51:22,903 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 13:51:22,919 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 13:51:22,952 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 13:51:22,953 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 13:51:22,953 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 13:51:22,953 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 13:51:22,953 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 13:51:22,954 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 13:51:22,954 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 13:51:22,954 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 13:51:22,988 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 13:51:23,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-12 13:51:23,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:51:23,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:51:23,008 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:51:23,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:51:23,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1258864990, now seen corresponding path program 1 times [2020-10-12 13:51:23,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:51:23,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738847150] [2020-10-12 13:51:23,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:51:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:23,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:23,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:23,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:51:23,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:23,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-10-12 13:51:23,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:23,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:51:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:51:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 13:51:23,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 13:51:23,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:51:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:23,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:23,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:23,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:51:23,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:23,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 13:51:23,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:23,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:51:23,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:51:23,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:51:23,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:51:23,824 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 13:51:23,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738847150] [2020-10-12 13:51:23,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:51:23,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 13:51:23,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790232829] [2020-10-12 13:51:23,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 13:51:23,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:51:23,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 13:51:23,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 13:51:23,856 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-12 13:51:25,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:51:25,713 INFO L93 Difference]: Finished difference Result 698 states and 1241 transitions. [2020-10-12 13:51:25,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:51:25,714 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-12 13:51:25,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:51:25,734 INFO L225 Difference]: With dead ends: 698 [2020-10-12 13:51:25,734 INFO L226 Difference]: Without dead ends: 380 [2020-10-12 13:51:25,747 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 13:51:25,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-12 13:51:25,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-12 13:51:25,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-12 13:51:25,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 604 transitions. [2020-10-12 13:51:25,843 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 604 transitions. Word has length 67 [2020-10-12 13:51:25,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:51:25,843 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 604 transitions. [2020-10-12 13:51:25,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 13:51:25,844 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 604 transitions. [2020-10-12 13:51:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-12 13:51:25,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:51:25,851 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:51:25,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 13:51:25,852 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:51:25,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:51:25,853 INFO L82 PathProgramCache]: Analyzing trace with hash -903050023, now seen corresponding path program 1 times [2020-10-12 13:51:25,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:51:25,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251069604] [2020-10-12 13:51:25,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:51:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:25,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:25,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:26,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:27,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:27,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-12 13:51:27,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:51:27,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1481 [2020-10-12 13:51:27,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:27,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:51:27,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:51:27,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:51:27,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:51:27,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:51:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:27,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:27,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:27,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:51:27,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:27,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 13:51:27,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:51:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:51:27,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:51:27,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:51:27,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:51:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:27,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:27,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:27,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 13:51:27,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 13:51:27,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:51:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:51:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 13:51:27,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:51:27,696 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:51:27,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251069604] [2020-10-12 13:51:27,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:51:27,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:51:27,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093367746] [2020-10-12 13:51:27,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:51:27,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:51:27,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:51:27,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:51:27,714 INFO L87 Difference]: Start difference. First operand 374 states and 604 transitions. Second operand 7 states. [2020-10-12 13:51:29,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:51:29,693 INFO L93 Difference]: Finished difference Result 1130 states and 1843 transitions. [2020-10-12 13:51:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:51:29,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2020-10-12 13:51:29,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:51:29,702 INFO L225 Difference]: With dead ends: 1130 [2020-10-12 13:51:29,703 INFO L226 Difference]: Without dead ends: 762 [2020-10-12 13:51:29,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:51:29,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-10-12 13:51:29,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 562. [2020-10-12 13:51:29,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-12 13:51:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 832 transitions. [2020-10-12 13:51:29,761 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 832 transitions. Word has length 136 [2020-10-12 13:51:29,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:51:29,761 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 832 transitions. [2020-10-12 13:51:29,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:51:29,762 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 832 transitions. [2020-10-12 13:51:29,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-12 13:51:29,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:51:29,766 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:51:29,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 13:51:29,766 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:51:29,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:51:29,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1466540511, now seen corresponding path program 1 times [2020-10-12 13:51:29,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:51:29,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579853676] [2020-10-12 13:51:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:51:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:29,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:30,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:30,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:31,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:31,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 13:51:31,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:51:31,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1461 [2020-10-12 13:51:31,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:31,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:51:31,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-12 13:51:31,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 13:51:31,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:51:31,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:51:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:31,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:31,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:31,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:51:31,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:31,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:51:31,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:31,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:51:31,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:51:31,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:51:31,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:51:31,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:51:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:31,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:31,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:31,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:51:31,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:31,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 13:51:31,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:31,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:51:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:51:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 13:51:31,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:51:31,616 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:51:31,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579853676] [2020-10-12 13:51:31,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:51:31,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:51:31,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937470931] [2020-10-12 13:51:31,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:51:31,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:51:31,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:51:31,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:51:31,621 INFO L87 Difference]: Start difference. First operand 562 states and 832 transitions. Second operand 8 states. [2020-10-12 13:51:33,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:51:33,236 INFO L93 Difference]: Finished difference Result 1266 states and 1833 transitions. [2020-10-12 13:51:33,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:51:33,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 140 [2020-10-12 13:51:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:51:33,248 INFO L225 Difference]: With dead ends: 1266 [2020-10-12 13:51:33,249 INFO L226 Difference]: Without dead ends: 570 [2020-10-12 13:51:33,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:51:33,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-10-12 13:51:33,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 562. [2020-10-12 13:51:33,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-12 13:51:33,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 677 transitions. [2020-10-12 13:51:33,304 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 677 transitions. Word has length 140 [2020-10-12 13:51:33,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:51:33,305 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 677 transitions. [2020-10-12 13:51:33,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:51:33,305 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 677 transitions. [2020-10-12 13:51:33,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 13:51:33,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:51:33,315 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:51:33,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 13:51:33,315 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:51:33,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:51:33,320 INFO L82 PathProgramCache]: Analyzing trace with hash -744258219, now seen corresponding path program 1 times [2020-10-12 13:51:33,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:51:33,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1906647417] [2020-10-12 13:51:33,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:51:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:33,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:33,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:33,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:34,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:34,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:51:34,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:51:34,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1270 [2020-10-12 13:51:34,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:34,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:51:34,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:51:34,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 13:51:34,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:51:34,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:51:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:34,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:34,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:34,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:51:34,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:34,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 13:51:34,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:51:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:51:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:51:34,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:51:34,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:51:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:34,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:34,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:34,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:51:34,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:34,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 13:51:34,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:34,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:51:34,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:51:34,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:51:34,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:51:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:51:35,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1906647417] [2020-10-12 13:51:35,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:51:35,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:51:35,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432281557] [2020-10-12 13:51:35,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:51:35,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:51:35,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:51:35,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:51:35,035 INFO L87 Difference]: Start difference. First operand 562 states and 677 transitions. Second operand 7 states. [2020-10-12 13:51:36,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:51:36,476 INFO L93 Difference]: Finished difference Result 1316 states and 1653 transitions. [2020-10-12 13:51:36,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 13:51:36,477 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-10-12 13:51:36,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:51:36,482 INFO L225 Difference]: With dead ends: 1316 [2020-10-12 13:51:36,482 INFO L226 Difference]: Without dead ends: 942 [2020-10-12 13:51:36,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 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 13:51:36,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2020-10-12 13:51:36,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 562. [2020-10-12 13:51:36,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-12 13:51:36,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 669 transitions. [2020-10-12 13:51:36,505 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 669 transitions. Word has length 150 [2020-10-12 13:51:36,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:51:36,506 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 669 transitions. [2020-10-12 13:51:36,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:51:36,506 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 669 transitions. [2020-10-12 13:51:36,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-12 13:51:36,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:51:36,510 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:51:36,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 13:51:36,511 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:51:36,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:51:36,511 INFO L82 PathProgramCache]: Analyzing trace with hash 764226957, now seen corresponding path program 1 times [2020-10-12 13:51:36,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:51:36,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978385433] [2020-10-12 13:51:36,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:51:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:36,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:36,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:36,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:37,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:39,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:41,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:41,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-10-12 13:51:41,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:51:41,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 13:51:41,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 13:51:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:51:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-12 13:51:41,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:51:41,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:51:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:41,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:41,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:41,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:51:41,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:41,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:51:41,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:41,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:51:41,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:51:41,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:51:41,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:51:41,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:51:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:41,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:41,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:41,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:41,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:51:41,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:51:41,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-12 13:51:41,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:41,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:51:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:51:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 13:51:41,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:51:42,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:51:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:42,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:42,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:42,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:51:42,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:42,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-12 13:51:42,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:42,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:51:42,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:51:42,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:51:42,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-12 13:51:42,622 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 13:51:42,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978385433] [2020-10-12 13:51:42,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:51:42,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:51:42,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201913970] [2020-10-12 13:51:42,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:51:42,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:51:42,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:51:42,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:51:42,626 INFO L87 Difference]: Start difference. First operand 562 states and 669 transitions. Second operand 8 states. [2020-10-12 13:51:44,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:51:44,064 INFO L93 Difference]: Finished difference Result 1510 states and 1813 transitions. [2020-10-12 13:51:44,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:51:44,067 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 250 [2020-10-12 13:51:44,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:51:44,075 INFO L225 Difference]: With dead ends: 1510 [2020-10-12 13:51:44,075 INFO L226 Difference]: Without dead ends: 954 [2020-10-12 13:51:44,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:51:44,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-10-12 13:51:44,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 936. [2020-10-12 13:51:44,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-10-12 13:51:44,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1066 transitions. [2020-10-12 13:51:44,132 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1066 transitions. Word has length 250 [2020-10-12 13:51:44,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:51:44,133 INFO L479 AbstractCegarLoop]: Abstraction has 936 states and 1066 transitions. [2020-10-12 13:51:44,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:51:44,134 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1066 transitions. [2020-10-12 13:51:44,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2020-10-12 13:51:44,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:51:44,143 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-12 13:51:44,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 13:51:44,146 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:51:44,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:51:44,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1534624942, now seen corresponding path program 1 times [2020-10-12 13:51:44,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:51:44,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911982194] [2020-10-12 13:51:44,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:51:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:44,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:44,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:44,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:45,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:47,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:49,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:49,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 443 [2020-10-12 13:51:49,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:51:49,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-12 13:51:49,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:51:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-12 13:51:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 13:51:49,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:51:49,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:51:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:49,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:49,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:49,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:51:49,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:49,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:51:49,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:49,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:51:49,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:51:49,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:51:49,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:51:49,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:51:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:49,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:49,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:49,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:51:49,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:49,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 13:51:49,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:51:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:51:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 13:51:49,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:51:49,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:51:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:49,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:50,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:50,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:50,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:51:50,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:51:50,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 935 [2020-10-12 13:51:50,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:50,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:51:50,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:51:50,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:51:50,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:51:51,432 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-10-12 13:51:51,665 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2020-10-12 13:51:51,916 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-10-12 13:51:52,140 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2020-10-12 13:51:52,407 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2020-10-12 13:51:53,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-10-12 13:51:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:51:53,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:51:53,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:51:53,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:51:53,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:51:53,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:51:53,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:51:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:51:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:51:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:51:53,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:51:54,561 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 290 proven. 73 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-12 13:51:54,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911982194] [2020-10-12 13:51:54,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:51:54,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:51:54,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812139900] [2020-10-12 13:51:54,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:51:54,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:51:54,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:51:54,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:51:54,573 INFO L87 Difference]: Start difference. First operand 936 states and 1066 transitions. Second operand 13 states. [2020-10-12 13:51:55,705 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2020-10-12 13:51:56,002 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2020-10-12 13:51:56,403 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 54 [2020-10-12 13:51:57,049 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 109 [2020-10-12 13:51:57,774 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 87 [2020-10-12 13:51:58,499 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 81 [2020-10-12 13:51:58,985 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 85 [2020-10-12 13:51:59,609 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 89 [2020-10-12 13:52:00,349 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 51 [2020-10-12 13:52:00,643 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 55 [2020-10-12 13:52:00,970 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 60 [2020-10-12 13:52:01,386 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 55 [2020-10-12 13:52:01,702 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 60 [2020-10-12 13:52:02,161 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 53 [2020-10-12 13:52:03,430 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 99 [2020-10-12 13:52:03,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:52:03,657 INFO L93 Difference]: Finished difference Result 2062 states and 2346 transitions. [2020-10-12 13:52:03,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:52:03,659 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 429 [2020-10-12 13:52:03,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:52:03,667 INFO L225 Difference]: With dead ends: 2062 [2020-10-12 13:52:03,667 INFO L226 Difference]: Without dead ends: 1065 [2020-10-12 13:52:03,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=260, Invalid=670, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:52:03,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2020-10-12 13:52:03,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1053. [2020-10-12 13:52:03,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2020-10-12 13:52:03,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1186 transitions. [2020-10-12 13:52:03,715 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1186 transitions. Word has length 429 [2020-10-12 13:52:03,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:52:03,716 INFO L479 AbstractCegarLoop]: Abstraction has 1053 states and 1186 transitions. [2020-10-12 13:52:03,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:52:03,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1186 transitions. [2020-10-12 13:52:03,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2020-10-12 13:52:03,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:52:03,731 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-12 13:52:03,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 13:52:03,731 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:52:03,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:52:03,732 INFO L82 PathProgramCache]: Analyzing trace with hash -2044045815, now seen corresponding path program 1 times [2020-10-12 13:52:03,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:52:03,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769238126] [2020-10-12 13:52:03,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:52:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:03,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:03,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:04,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:08,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:08,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:08,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:08,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 562 [2020-10-12 13:52:08,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:52:08,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-12 13:52:08,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:08,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:52:08,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 238 [2020-10-12 13:52:08,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 13:52:08,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:09,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:52:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:09,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:09,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:09,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:52:09,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:09,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:52:09,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:09,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:09,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:09,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:52:09,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:52:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:09,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:09,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:09,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:52:09,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:09,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:52:09,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:09,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:52:09,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:52:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:09,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:09,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:09,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:52:09,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:09,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 13:52:09,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:52:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 13:52:09,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:09,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 13:52:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:09,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:09,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:09,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:09,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:52:09,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:52:09,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-10-12 13:52:09,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:09,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:52:09,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:52:09,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:52:09,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:10,294 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2020-10-12 13:52:10,455 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2020-10-12 13:52:10,632 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-12 13:52:10,815 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-12 13:52:11,000 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-10-12 13:52:11,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2020-10-12 13:52:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:11,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:11,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:11,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:52:11,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:11,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:52:11,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:11,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:11,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:52:11,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:11,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:12,428 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 473 proven. 73 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2020-10-12 13:52:12,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769238126] [2020-10-12 13:52:12,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:52:12,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:52:12,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526085697] [2020-10-12 13:52:12,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:52:12,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:52:12,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:52:12,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:52:12,431 INFO L87 Difference]: Start difference. First operand 1053 states and 1186 transitions. Second operand 13 states. [2020-10-12 13:52:13,040 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2020-10-12 13:52:13,389 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-12 13:52:13,729 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2020-10-12 13:52:13,973 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2020-10-12 13:52:14,130 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2020-10-12 13:52:14,347 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-12 13:52:14,577 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2020-10-12 13:52:14,804 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2020-10-12 13:52:15,635 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-12 13:52:16,187 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-10-12 13:52:16,506 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2020-10-12 13:52:16,711 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2020-10-12 13:52:16,969 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2020-10-12 13:52:17,234 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2020-10-12 13:52:17,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:52:17,726 INFO L93 Difference]: Finished difference Result 2298 states and 2590 transitions. [2020-10-12 13:52:17,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:52:17,728 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 546 [2020-10-12 13:52:17,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:52:17,735 INFO L225 Difference]: With dead ends: 2298 [2020-10-12 13:52:17,736 INFO L226 Difference]: Without dead ends: 1226 [2020-10-12 13:52:17,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:52:17,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2020-10-12 13:52:17,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1212. [2020-10-12 13:52:17,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1212 states. [2020-10-12 13:52:17,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1349 transitions. [2020-10-12 13:52:17,769 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1349 transitions. Word has length 546 [2020-10-12 13:52:17,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:52:17,770 INFO L479 AbstractCegarLoop]: Abstraction has 1212 states and 1349 transitions. [2020-10-12 13:52:17,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:52:17,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1349 transitions. [2020-10-12 13:52:17,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2020-10-12 13:52:17,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:52:17,777 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:17,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 13:52:17,778 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:52:17,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:52:17,778 INFO L82 PathProgramCache]: Analyzing trace with hash 9829946, now seen corresponding path program 1 times [2020-10-12 13:52:17,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:52:17,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8382256] [2020-10-12 13:52:17,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:52:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:17,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:17,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:18,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:18,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:19,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:22,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:22,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 645 [2020-10-12 13:52:22,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:52:22,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-12 13:52:22,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:22,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:52:22,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 321 [2020-10-12 13:52:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:52:22,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:23,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:52:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:23,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:23,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:23,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:52:23,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:23,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:52:23,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:23,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:23,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:23,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:23,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:52:23,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:52:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:23,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:23,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:23,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:52:23,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:23,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 13:52:23,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:23,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:23,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:23,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:23,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:52:23,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:52:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:23,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:23,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:23,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:52:23,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:23,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 13:52:23,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:23,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:23,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 13:52:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:23,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:23,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:23,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:52:23,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:23,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 13:52:23,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:52:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 13:52:23,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:52:23,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 13:52:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:23,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:23,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:24,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:24,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:52:24,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:52:24,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1054 [2020-10-12 13:52:24,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:24,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:52:24,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:52:24,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:52:24,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:25,132 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-10-12 13:52:25,426 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2020-10-12 13:52:25,670 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2020-10-12 13:52:25,911 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2020-10-12 13:52:26,168 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2020-10-12 13:52:26,427 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2020-10-12 13:52:27,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2020-10-12 13:52:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:27,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:27,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:27,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:52:27,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:27,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:52:27,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:27,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:27,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:52:27,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:27,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:29,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1174 backedges. 620 proven. 73 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-10-12 13:52:29,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8382256] [2020-10-12 13:52:29,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:52:29,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:52:29,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497702516] [2020-10-12 13:52:29,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:52:29,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:52:29,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:52:29,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:52:29,097 INFO L87 Difference]: Start difference. First operand 1212 states and 1349 transitions. Second operand 13 states. [2020-10-12 13:52:29,793 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2020-10-12 13:52:30,239 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2020-10-12 13:52:30,534 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2020-10-12 13:52:30,735 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2020-10-12 13:52:30,965 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2020-10-12 13:52:31,434 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2020-10-12 13:52:31,716 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 85 [2020-10-12 13:52:31,995 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 53 [2020-10-12 13:52:32,186 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-10-12 13:52:32,866 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 56 [2020-10-12 13:52:33,350 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 62 [2020-10-12 13:52:33,575 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 56 [2020-10-12 13:52:33,813 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 60 [2020-10-12 13:52:34,333 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 60 [2020-10-12 13:52:34,656 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 63 [2020-10-12 13:52:35,184 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 13:52:35,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:52:35,418 INFO L93 Difference]: Finished difference Result 2616 states and 2919 transitions. [2020-10-12 13:52:35,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:52:35,419 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 627 [2020-10-12 13:52:35,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:52:35,426 INFO L225 Difference]: With dead ends: 2616 [2020-10-12 13:52:35,426 INFO L226 Difference]: Without dead ends: 1403 [2020-10-12 13:52:35,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=271, Invalid=659, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:52:35,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2020-10-12 13:52:35,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1391. [2020-10-12 13:52:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1391 states. [2020-10-12 13:52:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1534 transitions. [2020-10-12 13:52:35,464 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1534 transitions. Word has length 627 [2020-10-12 13:52:35,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:52:35,465 INFO L479 AbstractCegarLoop]: Abstraction has 1391 states and 1534 transitions. [2020-10-12 13:52:35,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:52:35,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1534 transitions. [2020-10-12 13:52:35,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2020-10-12 13:52:35,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:52:35,473 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 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] [2020-10-12 13:52:35,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 13:52:35,474 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:52:35,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:52:35,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1959199042, now seen corresponding path program 1 times [2020-10-12 13:52:35,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:52:35,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10202386] [2020-10-12 13:52:35,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:52:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:35,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:35,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:35,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:35,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:39,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:40,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:40,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 723 [2020-10-12 13:52:40,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:52:40,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 13:52:40,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:40,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:52:40,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 399 [2020-10-12 13:52:40,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 13:52:40,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:40,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:52:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:40,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:40,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:40,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:52:40,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:40,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:52:40,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:40,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:40,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:52:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:40,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:40,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:40,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:52:40,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:40,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:52:40,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:40,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:40,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:40,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:40,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:40,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:52:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:40,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:40,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:40,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:52:40,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:40,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:52:40,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:40,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:40,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 13:52:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:40,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:40,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:40,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:52:40,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:40,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 13:52:40,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:52:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 13:52:40,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:41,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-12 13:52:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:41,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:41,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:41,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:41,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:52:41,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:52:41,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-10-12 13:52:41,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:52:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:52:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:52:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:42,122 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2020-10-12 13:52:42,328 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2020-10-12 13:52:42,564 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2020-10-12 13:52:42,807 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2020-10-12 13:52:43,032 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2020-10-12 13:52:43,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2020-10-12 13:52:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:43,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:43,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:43,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:52:43,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:43,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 13:52:43,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:52:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:43,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:45,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 698 proven. 73 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-12 13:52:45,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10202386] [2020-10-12 13:52:45,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:52:45,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:52:45,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954314253] [2020-10-12 13:52:45,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:52:45,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:52:45,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:52:45,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:52:45,612 INFO L87 Difference]: Start difference. First operand 1391 states and 1534 transitions. Second operand 13 states. [2020-10-12 13:52:46,325 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2020-10-12 13:52:46,945 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 98 [2020-10-12 13:52:47,378 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2020-10-12 13:52:47,705 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 75 [2020-10-12 13:52:47,986 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2020-10-12 13:52:48,419 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 77 [2020-10-12 13:52:48,749 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 76 [2020-10-12 13:52:49,075 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 52 [2020-10-12 13:52:49,920 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 47 [2020-10-12 13:52:50,549 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 53 [2020-10-12 13:52:50,836 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 59 [2020-10-12 13:52:51,080 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 54 [2020-10-12 13:52:51,454 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 53 [2020-10-12 13:52:51,744 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 54 [2020-10-12 13:52:52,473 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 90 [2020-10-12 13:52:52,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:52:52,662 INFO L93 Difference]: Finished difference Result 2976 states and 3292 transitions. [2020-10-12 13:52:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:52:52,666 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 705 [2020-10-12 13:52:52,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:52:52,673 INFO L225 Difference]: With dead ends: 2976 [2020-10-12 13:52:52,673 INFO L226 Difference]: Without dead ends: 1580 [2020-10-12 13:52:52,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=259, Invalid=671, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:52:52,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2020-10-12 13:52:52,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1564. [2020-10-12 13:52:52,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1564 states. [2020-10-12 13:52:52,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 1710 transitions. [2020-10-12 13:52:52,712 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 1710 transitions. Word has length 705 [2020-10-12 13:52:52,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:52:52,713 INFO L479 AbstractCegarLoop]: Abstraction has 1564 states and 1710 transitions. [2020-10-12 13:52:52,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:52:52,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 1710 transitions. [2020-10-12 13:52:52,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2020-10-12 13:52:52,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:52:52,723 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:52:52,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 13:52:52,723 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:52:52,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:52:52,724 INFO L82 PathProgramCache]: Analyzing trace with hash 40127337, now seen corresponding path program 1 times [2020-10-12 13:52:52,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:52:52,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422700751] [2020-10-12 13:52:52,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:52:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:53,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:53,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:53,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:53,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:57,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:57,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:57,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 824 [2020-10-12 13:52:57,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:52:57,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-12 13:52:57,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:57,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:52:57,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 500 [2020-10-12 13:52:57,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 13:52:57,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:58,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:52:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:58,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:58,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:58,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:52:58,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:58,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:52:58,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:58,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:58,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:58,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:58,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:58,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:52:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:58,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:58,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:58,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:52:58,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:58,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 13:52:58,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:58,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:58,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:58,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:58,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:58,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:52:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:58,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:58,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:58,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:52:58,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:58,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:52:58,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:58,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:58,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 13:52:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:58,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:58,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:58,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:52:58,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:58,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:52:58,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:58,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:52:58,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:58,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:52:58,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:58,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 13:52:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:58,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:58,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:58,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:52:58,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:52:58,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 13:52:58,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:58,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:52:58,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:52:58,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 13:52:58,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:58,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2020-10-12 13:52:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:52:58,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:58,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:52:58,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:52:58,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:52:58,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:52:58,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-12 13:52:58,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:52:58,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:52:58,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:52:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:52:58,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:52:59,222 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2020-10-12 13:52:59,410 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2020-10-12 13:52:59,616 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-10-12 13:52:59,830 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-10-12 13:53:00,062 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2020-10-12 13:53:00,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-12 13:53:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:00,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:00,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:00,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:53:00,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:00,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 13:53:00,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:00,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:00,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:53:00,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:00,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:02,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1792 backedges. 863 proven. 73 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2020-10-12 13:53:02,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422700751] [2020-10-12 13:53:02,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:53:02,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:53:02,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399592302] [2020-10-12 13:53:02,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:53:02,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:53:02,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:53:02,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:53:02,319 INFO L87 Difference]: Start difference. First operand 1564 states and 1710 transitions. Second operand 13 states. [2020-10-12 13:53:02,860 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-12 13:53:03,051 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 13:53:03,317 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-10-12 13:53:03,534 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-10-12 13:53:03,866 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-10-12 13:53:04,188 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-10-12 13:53:04,551 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 92 [2020-10-12 13:53:05,395 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2020-10-12 13:53:05,614 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-12 13:53:05,884 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-10-12 13:53:06,113 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2020-10-12 13:53:06,553 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2020-10-12 13:53:06,956 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2020-10-12 13:53:07,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:53:07,435 INFO L93 Difference]: Finished difference Result 3316 states and 3636 transitions. [2020-10-12 13:53:07,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:53:07,439 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 804 [2020-10-12 13:53:07,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:53:07,446 INFO L225 Difference]: With dead ends: 3316 [2020-10-12 13:53:07,446 INFO L226 Difference]: Without dead ends: 1650 [2020-10-12 13:53:07,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:53:07,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2020-10-12 13:53:07,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1640. [2020-10-12 13:53:07,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1640 states. [2020-10-12 13:53:07,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 1789 transitions. [2020-10-12 13:53:07,486 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 1789 transitions. Word has length 804 [2020-10-12 13:53:07,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:53:07,487 INFO L479 AbstractCegarLoop]: Abstraction has 1640 states and 1789 transitions. [2020-10-12 13:53:07,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:53:07,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 1789 transitions. [2020-10-12 13:53:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2020-10-12 13:53:07,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:53:07,498 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:53:07,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 13:53:07,499 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:53:07,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:53:07,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1085547821, now seen corresponding path program 1 times [2020-10-12 13:53:07,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:53:07,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066651142] [2020-10-12 13:53:07,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:53:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:07,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:07,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:08,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:12,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:12,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 898 [2020-10-12 13:53:12,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:53:12,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-12 13:53:12,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:12,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:53:12,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 574 [2020-10-12 13:53:12,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 13:53:12,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:12,976 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 27 [2020-10-12 13:53:13,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:53:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:13,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:13,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:13,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:53:13,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:13,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:53:13,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:13,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:53:13,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:53:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:13,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:13,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:13,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:53:13,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:13,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 13:53:13,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:13,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:53:13,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:53:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:13,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:13,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:13,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:53:13,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:13,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:53:13,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:13,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:13,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:13,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:13,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:13,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 13:53:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:13,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:13,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:13,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:53:13,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:13,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 13:53:13,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:13,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:13,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:13,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:13,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:13,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-12 13:53:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:13,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:13,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:13,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 13:53:13,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:13,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-12 13:53:13,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:13,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:53:13,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:13,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-12 13:53:13,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:13,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2020-10-12 13:53:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:13,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:13,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:14,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:14,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:53:14,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:53:14,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 632 [2020-10-12 13:53:14,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:14,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:53:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:53:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:53:14,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:14,402 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-10-12 13:53:14,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2020-10-12 13:53:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:14,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:14,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:14,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:53:14,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:14,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 13:53:14,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:53:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:14,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:16,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 937 proven. 73 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2020-10-12 13:53:16,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066651142] [2020-10-12 13:53:16,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:53:16,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:53:16,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805773908] [2020-10-12 13:53:16,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:53:16,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:53:16,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:53:16,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:53:16,007 INFO L87 Difference]: Start difference. First operand 1640 states and 1789 transitions. Second operand 13 states. [2020-10-12 13:53:16,947 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-12 13:53:17,090 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2020-10-12 13:53:17,259 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2020-10-12 13:53:17,447 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 13:53:17,638 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-10-12 13:53:17,850 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2020-10-12 13:53:18,095 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 53 [2020-10-12 13:53:19,120 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2020-10-12 13:53:19,275 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2020-10-12 13:53:19,458 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-10-12 13:53:19,670 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2020-10-12 13:53:19,880 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-10-12 13:53:20,119 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 66 [2020-10-12 13:53:20,368 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2020-10-12 13:53:20,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:53:20,666 INFO L93 Difference]: Finished difference Result 3466 states and 3791 transitions. [2020-10-12 13:53:20,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:53:20,672 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 878 [2020-10-12 13:53:20,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:53:20,682 INFO L225 Difference]: With dead ends: 3466 [2020-10-12 13:53:20,682 INFO L226 Difference]: Without dead ends: 1810 [2020-10-12 13:53:20,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=256, Invalid=614, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:53:20,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2020-10-12 13:53:20,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1802. [2020-10-12 13:53:20,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1802 states. [2020-10-12 13:53:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 1954 transitions. [2020-10-12 13:53:20,724 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 1954 transitions. Word has length 878 [2020-10-12 13:53:20,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:53:20,725 INFO L479 AbstractCegarLoop]: Abstraction has 1802 states and 1954 transitions. [2020-10-12 13:53:20,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:53:20,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 1954 transitions. [2020-10-12 13:53:20,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2020-10-12 13:53:20,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:53:20,737 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:53:20,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 13:53:20,738 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:53:20,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:53:20,738 INFO L82 PathProgramCache]: Analyzing trace with hash 116029409, now seen corresponding path program 1 times [2020-10-12 13:53:20,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:53:20,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341502673] [2020-10-12 13:53:20,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:53:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:21,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:21,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:21,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:22,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:25,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:25,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 902 [2020-10-12 13:53:25,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:53:25,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-12 13:53:25,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:53:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:53:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 13:53:25,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:26,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:53:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:26,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:26,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:26,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:53:26,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:26,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:53:26,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:53:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:53:26,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:26,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:53:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:26,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:26,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:26,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:53:26,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:26,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 13:53:26,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:53:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:53:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 13:53:26,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:26,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:53:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:26,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:26,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:26,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:53:26,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:26,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 13:53:26,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:26,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:26,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-10-12 13:53:26,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:26,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:26,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 13:53:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:26,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:26,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:26,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:53:26,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:26,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:53:26,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-12 13:53:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:26,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:26,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 13:53:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:26,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:26,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:26,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:53:26,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:26,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 13:53:26,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:26,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:26,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-12 13:53:26,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:26,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:26,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2020-10-12 13:53:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:26,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:26,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:26,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:53:26,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:26,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:53:26,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 13:53:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:26,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:26,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2020-10-12 13:53:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:26,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:26,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:26,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:53:26,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:26,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 13:53:26,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 13:53:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:26,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:26,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2020-10-12 13:53:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:26,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:26,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:26,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:53:26,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:26,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:53:26,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:26,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:26,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:53:26,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:26,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:26,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2306 backedges. 420 proven. 528 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2020-10-12 13:53:26,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341502673] [2020-10-12 13:53:26,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:53:26,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:53:26,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467376929] [2020-10-12 13:53:26,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:53:26,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:53:26,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:53:26,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:53:26,995 INFO L87 Difference]: Start difference. First operand 1802 states and 1954 transitions. Second operand 7 states. [2020-10-12 13:53:28,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:53:28,582 INFO L93 Difference]: Finished difference Result 4166 states and 4625 transitions. [2020-10-12 13:53:28,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:53:28,582 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 880 [2020-10-12 13:53:28,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:53:28,591 INFO L225 Difference]: With dead ends: 4166 [2020-10-12 13:53:28,592 INFO L226 Difference]: Without dead ends: 2370 [2020-10-12 13:53:28,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 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 13:53:28,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2020-10-12 13:53:28,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 2174. [2020-10-12 13:53:28,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2174 states. [2020-10-12 13:53:28,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 2375 transitions. [2020-10-12 13:53:28,642 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 2375 transitions. Word has length 880 [2020-10-12 13:53:28,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:53:28,643 INFO L479 AbstractCegarLoop]: Abstraction has 2174 states and 2375 transitions. [2020-10-12 13:53:28,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:53:28,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 2375 transitions. [2020-10-12 13:53:28,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2020-10-12 13:53:28,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:53:28,656 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:53:28,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 13:53:28,657 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:53:28,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:53:28,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1501615839, now seen corresponding path program 1 times [2020-10-12 13:53:28,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:53:28,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641601774] [2020-10-12 13:53:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:53:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:28,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:29,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:30,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:32,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:33,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:33,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1020 [2020-10-12 13:53:33,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:53:33,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-12 13:53:33,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 13:53:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 13:53:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 329 [2020-10-12 13:53:33,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:33,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:53:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:33,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:33,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:33,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:53:33,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:33,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:53:33,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:33,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:33,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:33,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:33,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:33,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:53:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:33,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:33,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:34,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:53:34,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:34,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:53:34,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:34,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:34,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:34,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:34,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:34,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:53:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:34,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:34,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:34,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:53:34,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:34,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:53:34,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:34,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:34,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:53:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:34,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:34,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:34,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:53:34,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:34,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 13:53:34,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:34,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:34,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:34,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:53:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:34,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:34,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:34,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:53:34,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:34,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 13:53:34,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:34,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:34,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:34,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:34,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:34,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:53:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:34,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:34,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:34,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:53:34,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:34,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 13:53:34,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:34,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:34,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:34,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:34,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:34,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:53:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:34,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:34,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:34,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:53:34,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:34,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:53:34,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:34,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:53:34,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:34,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:53:34,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:34,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:53:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:34,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:34,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:34,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:53:34,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:34,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-12 13:53:34,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:34,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:53:34,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:53:34,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:53:34,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:34,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:53:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:34,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:34,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:34,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:34,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 13:53:34,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:53:34,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 13:53:34,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:34,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:53:34,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:53:34,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:53:34,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:35,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3074 backedges. 1505 proven. 126 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2020-10-12 13:53:35,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641601774] [2020-10-12 13:53:35,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:53:35,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 13:53:35,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479157596] [2020-10-12 13:53:35,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 13:53:35,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:53:35,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 13:53:35,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-12 13:53:35,157 INFO L87 Difference]: Start difference. First operand 2174 states and 2375 transitions. Second operand 9 states. [2020-10-12 13:53:37,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:53:37,902 INFO L93 Difference]: Finished difference Result 5310 states and 6065 transitions. [2020-10-12 13:53:37,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 13:53:37,903 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 996 [2020-10-12 13:53:37,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:53:37,917 INFO L225 Difference]: With dead ends: 5310 [2020-10-12 13:53:37,917 INFO L226 Difference]: Without dead ends: 3324 [2020-10-12 13:53:37,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2020-10-12 13:53:37,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2020-10-12 13:53:37,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3306. [2020-10-12 13:53:37,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3306 states. [2020-10-12 13:53:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3306 states to 3306 states and 3778 transitions. [2020-10-12 13:53:37,996 INFO L78 Accepts]: Start accepts. Automaton has 3306 states and 3778 transitions. Word has length 996 [2020-10-12 13:53:37,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:53:37,997 INFO L479 AbstractCegarLoop]: Abstraction has 3306 states and 3778 transitions. [2020-10-12 13:53:37,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 13:53:37,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3306 states and 3778 transitions. [2020-10-12 13:53:38,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1000 [2020-10-12 13:53:38,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:53:38,011 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:53:38,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 13:53:38,012 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:53:38,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:53:38,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1742907194, now seen corresponding path program 1 times [2020-10-12 13:53:38,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:53:38,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385056818] [2020-10-12 13:53:38,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:53:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:38,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:38,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:40,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:41,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:41,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1023 [2020-10-12 13:53:41,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:53:41,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3011 [2020-10-12 13:53:41,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:53:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 13:53:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 13:53:41,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:41,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:53:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:41,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:41,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:41,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:53:41,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:41,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:53:41,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:41,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:41,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:41,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:41,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:41,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:53:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:41,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:41,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:41,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:53:41,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:41,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:53:41,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:41,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:41,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:53:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:41,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:41,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:41,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:53:41,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:41,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:53:41,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:41,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:41,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:53:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:41,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:41,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:41,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:53:41,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:41,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:53:41,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:41,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:41,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:41,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:41,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:41,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:53:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:41,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:41,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:41,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:53:41,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:41,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 13:53:41,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:41,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:41,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:53:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:41,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:41,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:41,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:53:41,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:41,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 13:53:41,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:41,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:41,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:41,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:41,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:41,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:53:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:41,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:41,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:41,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:53:41,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:41,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:53:41,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:41,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:41,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:53:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:41,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:41,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:41,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:53:41,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:41,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 13:53:41,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:53:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:41,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 13:53:41,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:41,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:53:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:41,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:41,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:41,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:53:41,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:41,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 13:53:41,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:53:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:53:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:53:41,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3090 backedges. 1061 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-12 13:53:42,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385056818] [2020-10-12 13:53:42,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:53:42,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:53:42,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515684330] [2020-10-12 13:53:42,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:53:42,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:53:42,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:53:42,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:53:42,345 INFO L87 Difference]: Start difference. First operand 3306 states and 3778 transitions. Second operand 7 states. [2020-10-12 13:53:43,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:53:43,835 INFO L93 Difference]: Finished difference Result 7728 states and 9121 transitions. [2020-10-12 13:53:43,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:53:43,841 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 999 [2020-10-12 13:53:43,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:53:43,857 INFO L225 Difference]: With dead ends: 7728 [2020-10-12 13:53:43,857 INFO L226 Difference]: Without dead ends: 4610 [2020-10-12 13:53:43,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:53:43,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4610 states. [2020-10-12 13:53:43,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4610 to 4602. [2020-10-12 13:53:43,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4602 states. [2020-10-12 13:53:43,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 5345 transitions. [2020-10-12 13:53:43,951 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 5345 transitions. Word has length 999 [2020-10-12 13:53:43,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:53:43,952 INFO L479 AbstractCegarLoop]: Abstraction has 4602 states and 5345 transitions. [2020-10-12 13:53:43,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:53:43,952 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 5345 transitions. [2020-10-12 13:53:43,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1118 [2020-10-12 13:53:43,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:53:43,969 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, 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, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:53:43,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 13:53:43,970 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:53:43,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:53:43,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1543167414, now seen corresponding path program 1 times [2020-10-12 13:53:43,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:53:43,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628324152] [2020-10-12 13:53:43,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:53:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:44,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:44,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:44,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:49,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:49,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1143 [2020-10-12 13:53:49,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:53:49,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-12 13:53:49,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:49,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 13:53:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 13:53:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 387 [2020-10-12 13:53:49,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:49,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:53:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:49,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:49,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:49,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:53:49,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:49,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:53:49,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:49,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:49,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:49,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:53:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:49,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:49,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:49,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:53:49,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:49,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:53:49,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:49,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:49,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:49,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:49,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:49,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:53:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:49,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:49,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:49,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:53:49,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:49,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:53:49,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:49,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:49,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:53:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:49,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:49,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:49,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:53:49,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:49,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:53:49,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:49,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:49,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:49,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:49,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:49,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:53:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:49,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:49,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:49,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:53:49,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:49,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:53:49,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:49,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:49,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:53:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:49,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:49,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:49,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:53:49,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:49,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:53:49,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:53:49,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:49,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:53:49,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:49,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:53:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:49,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:49,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:49,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:53:49,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:49,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 13:53:49,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:49,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:53:49,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:49,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:53:49,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:49,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:53:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:49,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:49,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:49,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:53:49,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:49,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-12 13:53:49,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:49,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:53:49,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:53:49,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:53:49,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:49,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:53:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:49,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:49,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:49,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:53:49,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:49,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 13:53:49,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:49,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:53:49,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:53:49,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 13:53:49,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:50,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:53:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:50,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:50,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:50,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:53:50,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:50,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 13:53:50,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:50,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:53:50,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:53:50,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:53:50,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:51,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3962 backedges. 2420 proven. 164 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2020-10-12 13:53:51,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628324152] [2020-10-12 13:53:51,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:53:51,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 13:53:51,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983495750] [2020-10-12 13:53:51,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 13:53:51,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:53:51,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 13:53:51,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:53:51,351 INFO L87 Difference]: Start difference. First operand 4602 states and 5345 transitions. Second operand 11 states. [2020-10-12 13:53:54,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:53:54,519 INFO L93 Difference]: Finished difference Result 9028 states and 10526 transitions. [2020-10-12 13:53:54,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 13:53:54,520 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1117 [2020-10-12 13:53:54,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:53:54,538 INFO L225 Difference]: With dead ends: 9028 [2020-10-12 13:53:54,538 INFO L226 Difference]: Without dead ends: 4614 [2020-10-12 13:53:54,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2020-10-12 13:53:54,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4614 states. [2020-10-12 13:53:54,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4614 to 4418. [2020-10-12 13:53:54,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4418 states. [2020-10-12 13:53:54,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4418 states to 4418 states and 5137 transitions. [2020-10-12 13:53:54,637 INFO L78 Accepts]: Start accepts. Automaton has 4418 states and 5137 transitions. Word has length 1117 [2020-10-12 13:53:54,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:53:54,638 INFO L479 AbstractCegarLoop]: Abstraction has 4418 states and 5137 transitions. [2020-10-12 13:53:54,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 13:53:54,639 INFO L276 IsEmpty]: Start isEmpty. Operand 4418 states and 5137 transitions. [2020-10-12 13:53:54,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1136 [2020-10-12 13:53:54,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:53:54,658 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, 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, 8, 8, 8, 8, 8, 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, 5, 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, 2, 2, 2, 2, 2, 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] [2020-10-12 13:53:54,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 13:53:54,658 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:53:54,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:53:54,659 INFO L82 PathProgramCache]: Analyzing trace with hash 801087166, now seen corresponding path program 1 times [2020-10-12 13:53:54,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:53:54,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248342380] [2020-10-12 13:53:54,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:53:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:54,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:55,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:55,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:59,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:59,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1161 [2020-10-12 13:53:59,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:53:59,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5084 [2020-10-12 13:53:59,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:59,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:53:59,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 825 [2020-10-12 13:53:59,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 13:53:59,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:00,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:54:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:00,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:00,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:00,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:54:00,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:00,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:54:00,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:00,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:00,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:54:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:00,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:00,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:00,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:54:00,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:00,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:54:00,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:00,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:00,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:00,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:00,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:54:00,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:54:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:00,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:00,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:00,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:54:00,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:00,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:54:00,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:00,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:00,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:00,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:54:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:00,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:00,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:00,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:54:00,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:00,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 13:54:00,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:00,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:54:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:00,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:00,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:00,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:54:00,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:00,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:54:00,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:00,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:00,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:00,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:00,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:00,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:54:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:00,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:00,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:00,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:54:00,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:00,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 13:54:00,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:00,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:00,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:00,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:00,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 66 [2020-10-12 13:54:00,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:54:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:00,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:00,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:00,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:54:00,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:00,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:54:00,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:00,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:00,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:54:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:00,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:00,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:00,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 13:54:00,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:00,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 13:54:00,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:54:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 13:54:00,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:00,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 811 [2020-10-12 13:54:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:00,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:00,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:01,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:01,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:54:01,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:54:01,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-10-12 13:54:01,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:54:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:54:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:54:01,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:01,583 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-10-12 13:54:01,780 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 50 [2020-10-12 13:54:02,017 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2020-10-12 13:54:02,237 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2020-10-12 13:54:02,460 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-10-12 13:54:02,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 990 [2020-10-12 13:54:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:02,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:02,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:02,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 13:54:02,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:02,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:54:02,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:02,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:02,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 13:54:02,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:02,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:05,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4010 backedges. 1380 proven. 85 refuted. 0 times theorem prover too weak. 2545 trivial. 0 not checked. [2020-10-12 13:54:05,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248342380] [2020-10-12 13:54:05,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:54:05,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:54:05,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993319095] [2020-10-12 13:54:05,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:54:05,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:54:05,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:54:05,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:54:05,430 INFO L87 Difference]: Start difference. First operand 4418 states and 5137 transitions. Second operand 13 states. [2020-10-12 13:54:06,249 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-12 13:54:06,591 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2020-10-12 13:54:06,984 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2020-10-12 13:54:07,276 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2020-10-12 13:54:07,637 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2020-10-12 13:54:08,034 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2020-10-12 13:54:08,410 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 94 [2020-10-12 13:54:08,907 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-10-12 13:54:09,252 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2020-10-12 13:54:09,813 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 52 [2020-10-12 13:54:10,095 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 52 [2020-10-12 13:54:10,487 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 53 [2020-10-12 13:54:10,845 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 57 [2020-10-12 13:54:11,219 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2020-10-12 13:54:11,548 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 64 [2020-10-12 13:54:11,869 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-12 13:54:12,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:12,309 INFO L93 Difference]: Finished difference Result 8660 states and 10105 transitions. [2020-10-12 13:54:12,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 13:54:12,316 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1135 [2020-10-12 13:54:12,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:12,339 INFO L225 Difference]: With dead ends: 8660 [2020-10-12 13:54:12,339 INFO L226 Difference]: Without dead ends: 3827 [2020-10-12 13:54:12,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=273, Invalid=719, Unknown=0, NotChecked=0, Total=992 [2020-10-12 13:54:12,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3827 states. [2020-10-12 13:54:12,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3827 to 3815. [2020-10-12 13:54:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3815 states. [2020-10-12 13:54:12,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3815 states to 3815 states and 4420 transitions. [2020-10-12 13:54:12,429 INFO L78 Accepts]: Start accepts. Automaton has 3815 states and 4420 transitions. Word has length 1135 [2020-10-12 13:54:12,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:12,430 INFO L479 AbstractCegarLoop]: Abstraction has 3815 states and 4420 transitions. [2020-10-12 13:54:12,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:54:12,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3815 states and 4420 transitions. [2020-10-12 13:54:12,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1143 [2020-10-12 13:54:12,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:12,447 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, 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, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:54:12,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 13:54:12,448 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:12,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:12,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1332951573, now seen corresponding path program 1 times [2020-10-12 13:54:12,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:12,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146926279] [2020-10-12 13:54:12,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:12,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:13,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:16,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:16,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:17,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:17,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1168 [2020-10-12 13:54:17,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:54:17,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-12 13:54:17,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:17,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 13:54:17,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 13:54:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-12 13:54:17,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:17,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:54:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:17,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:17,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:17,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:54:17,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:17,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:54:17,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:17,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:17,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:54:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:17,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:17,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:17,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:54:17,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:17,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:54:17,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:17,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:17,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:17,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:54:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:17,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:17,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:17,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:54:17,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:17,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:54:17,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:17,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:17,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:54:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:18,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:18,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:54:18,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:18,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:54:18,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:18,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:18,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:18,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:18,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:18,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:54:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:18,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:18,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:54:18,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 13:54:18,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:18,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:54:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:18,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:18,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:54:18,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:18,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:54:18,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:18,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:18,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:18,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:18,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:18,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:54:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:18,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:18,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:54:18,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:18,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:54:18,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:18,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:54:18,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:18,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:54:18,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:18,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:54:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:18,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:18,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:54:18,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:18,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-12 13:54:18,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:54:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:54:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:54:18,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:18,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:54:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:18,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:18,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:54:18,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:54:18,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-10-12 13:54:18,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:54:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:54:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-12 13:54:18,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:19,300 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-10-12 13:54:19,503 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2020-10-12 13:54:19,718 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2020-10-12 13:54:19,972 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-12 13:54:20,213 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2020-10-12 13:54:20,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2020-10-12 13:54:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:20,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:20,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:20,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 13:54:20,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:20,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:54:20,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:20,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:20,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 13:54:20,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:20,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:22,745 INFO L134 CoverageAnalysis]: Checked inductivity of 4024 backedges. 1937 proven. 240 refuted. 0 times theorem prover too weak. 1847 trivial. 0 not checked. [2020-10-12 13:54:22,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146926279] [2020-10-12 13:54:22,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:54:22,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 13:54:22,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912472768] [2020-10-12 13:54:22,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 13:54:22,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:54:22,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 13:54:22,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-10-12 13:54:22,747 INFO L87 Difference]: Start difference. First operand 3815 states and 4420 transitions. Second operand 16 states. [2020-10-12 13:54:23,610 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2020-10-12 13:54:23,838 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2020-10-12 13:54:24,243 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-10-12 13:54:24,555 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2020-10-12 13:54:24,825 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2020-10-12 13:54:25,359 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2020-10-12 13:54:25,804 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 92 [2020-10-12 13:54:26,547 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2020-10-12 13:54:27,580 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2020-10-12 13:54:27,844 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2020-10-12 13:54:28,298 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2020-10-12 13:54:28,634 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2020-10-12 13:54:29,048 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2020-10-12 13:54:29,433 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 75 [2020-10-12 13:54:30,115 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 81 [2020-10-12 13:54:30,448 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2020-10-12 13:54:31,002 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2020-10-12 13:54:31,206 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-12 13:54:31,460 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2020-10-12 13:54:31,796 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-10-12 13:54:32,206 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 84 [2020-10-12 13:54:32,432 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2020-10-12 13:54:32,882 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2020-10-12 13:54:33,357 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 90 [2020-10-12 13:54:33,870 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2020-10-12 13:54:34,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:34,186 INFO L93 Difference]: Finished difference Result 7648 states and 8910 transitions. [2020-10-12 13:54:34,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-12 13:54:34,187 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1142 [2020-10-12 13:54:34,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:34,198 INFO L225 Difference]: With dead ends: 7648 [2020-10-12 13:54:34,198 INFO L226 Difference]: Without dead ends: 3955 [2020-10-12 13:54:34,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=559, Invalid=1891, Unknown=0, NotChecked=0, Total=2450 [2020-10-12 13:54:34,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2020-10-12 13:54:34,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3935. [2020-10-12 13:54:34,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3935 states. [2020-10-12 13:54:34,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3935 states to 3935 states and 4546 transitions. [2020-10-12 13:54:34,276 INFO L78 Accepts]: Start accepts. Automaton has 3935 states and 4546 transitions. Word has length 1142 [2020-10-12 13:54:34,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:34,277 INFO L479 AbstractCegarLoop]: Abstraction has 3935 states and 4546 transitions. [2020-10-12 13:54:34,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 13:54:34,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3935 states and 4546 transitions. [2020-10-12 13:54:34,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1261 [2020-10-12 13:54:34,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:34,298 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, 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, 9, 9, 9, 9, 9, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:54:34,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 13:54:34,299 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:34,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:34,299 INFO L82 PathProgramCache]: Analyzing trace with hash 708507665, now seen corresponding path program 1 times [2020-10-12 13:54:34,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:34,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478745904] [2020-10-12 13:54:34,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:34,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:34,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:37,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:39,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:39,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1288 [2020-10-12 13:54:39,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:54:39,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-12 13:54:39,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:39,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:54:39,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1221 [2020-10-12 13:54:39,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 13:54:39,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:39,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:54:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:39,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:39,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:39,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:54:39,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:39,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:54:39,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:39,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:39,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:54:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:39,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:39,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:39,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:54:39,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:39,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:54:39,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:39,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:39,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:39,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:39,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:39,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:54:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:39,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:39,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:39,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:54:39,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:39,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:54:39,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:39,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:39,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:54:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:39,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:39,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:39,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:54:39,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:39,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:54:39,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:39,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:39,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:39,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:54:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:39,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:39,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:39,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:54:39,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:39,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 13:54:39,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:39,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:39,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:39,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:39,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:39,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:54:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:39,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:39,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:39,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:54:39,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:39,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 13:54:39,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:39,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:39,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:54:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:40,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:40,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:40,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:54:40,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:40,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:54:40,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:40,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:40,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:40,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:40,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:40,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:54:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:40,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:40,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:40,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:54:40,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:40,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 13:54:40,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:40,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:40,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:54:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:40,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:40,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:40,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:54:40,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:40,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:54:40,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:40,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:40,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:40,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:54:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:40,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:40,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:40,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:54:40,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:40,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 13:54:40,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:40,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:40,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:54:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:40,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:40,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:40,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 13:54:40,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:40,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 13:54:40,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:40,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:54:40,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:40,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:54:40,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:40,987 INFO L134 CoverageAnalysis]: Checked inductivity of 5017 backedges. 617 proven. 10 refuted. 0 times theorem prover too weak. 4390 trivial. 0 not checked. [2020-10-12 13:54:40,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478745904] [2020-10-12 13:54:40,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:54:40,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:54:40,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175055295] [2020-10-12 13:54:40,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:54:40,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:54:40,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:54:40,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:54:40,989 INFO L87 Difference]: Start difference. First operand 3935 states and 4546 transitions. Second operand 8 states. [2020-10-12 13:54:42,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:42,249 INFO L93 Difference]: Finished difference Result 7786 states and 9075 transitions. [2020-10-12 13:54:42,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 13:54:42,254 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1260 [2020-10-12 13:54:42,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:42,266 INFO L225 Difference]: With dead ends: 7786 [2020-10-12 13:54:42,266 INFO L226 Difference]: Without dead ends: 3937 [2020-10-12 13:54:42,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:54:42,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3937 states. [2020-10-12 13:54:42,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3937 to 3933. [2020-10-12 13:54:42,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3933 states. [2020-10-12 13:54:42,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 4518 transitions. [2020-10-12 13:54:42,337 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 4518 transitions. Word has length 1260 [2020-10-12 13:54:42,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:42,338 INFO L479 AbstractCegarLoop]: Abstraction has 3933 states and 4518 transitions. [2020-10-12 13:54:42,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:54:42,339 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 4518 transitions. [2020-10-12 13:54:42,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1267 [2020-10-12 13:54:42,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:42,357 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, 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, 9, 9, 9, 9, 9, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:54:42,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 13:54:42,358 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:42,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:42,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1170719363, now seen corresponding path program 1 times [2020-10-12 13:54:42,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:42,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995297812] [2020-10-12 13:54:42,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:42,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:43,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:44,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:46,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:46,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1294 [2020-10-12 13:54:46,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:54:46,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4172 [2020-10-12 13:54:46,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:54:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1227 [2020-10-12 13:54:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 13:54:46,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:46,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:54:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:46,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:46,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:46,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:54:46,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:46,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:54:46,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:46,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:46,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:54:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:46,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:46,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:46,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:54:46,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:54:46,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:46,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:54:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:46,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:46,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:46,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:54:46,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:46,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:54:46,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:46,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:46,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:46,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:46,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:46,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:54:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:46,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:46,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:46,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:54:46,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:46,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:54:46,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:46,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:46,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:54:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:54:47,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:47,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:54:47,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:47,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:47,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:47,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:54:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:54:47,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:47,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:54:47,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:47,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:54:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:54:47,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:47,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:54:47,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:47,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:54:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:54:47,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:47,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:54:47,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:47,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:47,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:47,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:54:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:54:47,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:47,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:54:47,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:47,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:47,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:47,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:54:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:54:47,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:47,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 13:54:47,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:47,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:47,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:47,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:54:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 13:54:47,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:47,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 13:54:47,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:54:47,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:47,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 13:54:47,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,844 INFO L134 CoverageAnalysis]: Checked inductivity of 5059 backedges. 617 proven. 10 refuted. 0 times theorem prover too weak. 4432 trivial. 0 not checked. [2020-10-12 13:54:47,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995297812] [2020-10-12 13:54:47,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:54:47,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:54:47,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147424719] [2020-10-12 13:54:47,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:54:47,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:54:47,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:54:47,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:54:47,846 INFO L87 Difference]: Start difference. First operand 3933 states and 4518 transitions. Second operand 5 states. [2020-10-12 13:54:48,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:48,646 INFO L93 Difference]: Finished difference Result 7697 states and 8907 transitions. [2020-10-12 13:54:48,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:54:48,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1266 [2020-10-12 13:54:48,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:48,664 INFO L225 Difference]: With dead ends: 7697 [2020-10-12 13:54:48,664 INFO L226 Difference]: Without dead ends: 3937 [2020-10-12 13:54:48,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 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 13:54:48,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3937 states. [2020-10-12 13:54:48,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3937 to 3933. [2020-10-12 13:54:48,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3933 states. [2020-10-12 13:54:48,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 4507 transitions. [2020-10-12 13:54:48,747 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 4507 transitions. Word has length 1266 [2020-10-12 13:54:48,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:48,749 INFO L479 AbstractCegarLoop]: Abstraction has 3933 states and 4507 transitions. [2020-10-12 13:54:48,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:54:48,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 4507 transitions. [2020-10-12 13:54:48,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1269 [2020-10-12 13:54:48,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:48,774 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, 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, 9, 9, 9, 9, 9, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:54:48,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 13:54:48,775 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:48,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:48,776 INFO L82 PathProgramCache]: Analyzing trace with hash 499704993, now seen corresponding path program 1 times [2020-10-12 13:54:48,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:48,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833124252] [2020-10-12 13:54:48,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:49,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:49,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:51,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:52,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:52,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1296 [2020-10-12 13:54:52,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:54:52,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3630 [2020-10-12 13:54:52,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:52,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:54:52,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1229 [2020-10-12 13:54:52,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 13:54:52,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:52,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:54:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:52,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:52,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:52,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:54:52,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:52,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:54:52,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:52,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:52,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:52,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:52,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:54:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:52,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:52,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:52,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:54:52,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:52,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:54:52,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:52,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:52,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:52,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:52,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:52,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:54:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:52,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:52,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:52,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:54:52,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:52,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:54:52,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:52,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:52,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:54:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:52,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:52,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:52,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:54:52,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:52,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:54:52,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:52,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:52,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:52,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:52,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:53,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:54:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:53,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:53,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:53,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:54:53,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:53,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:54:53,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:53,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:53,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:53,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:53,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:53,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:54:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:53,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:53,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:53,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:54:53,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:53,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 13:54:53,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:53,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:53,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:54:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:53,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:53,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:53,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:54:53,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 13:54:53,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:53,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:54:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:53,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:53,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:53,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:54:53,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:53,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:54:53,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:53,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:53,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:54:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:53,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:53,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:53,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:54:53,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:53,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:54:53,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:53,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:53,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:54:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:53,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:53,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:53,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:54:53,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:53,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:54:53,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:53,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:53,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:53,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:53,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:53,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:54:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:53,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:53,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:53,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:54:53,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:53,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 13:54:53,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:53,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:54:53,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:53,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 13:54:53,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:54,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 617 proven. 10 refuted. 0 times theorem prover too weak. 4446 trivial. 0 not checked. [2020-10-12 13:54:54,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833124252] [2020-10-12 13:54:54,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:54:54,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:54:54,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036168774] [2020-10-12 13:54:54,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:54:54,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:54:54,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:54:54,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:54:54,040 INFO L87 Difference]: Start difference. First operand 3933 states and 4507 transitions. Second operand 5 states. [2020-10-12 13:54:54,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:54,978 INFO L93 Difference]: Finished difference Result 7707 states and 8881 transitions. [2020-10-12 13:54:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:54:54,979 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1268 [2020-10-12 13:54:54,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:54,992 INFO L225 Difference]: With dead ends: 7707 [2020-10-12 13:54:54,992 INFO L226 Difference]: Without dead ends: 3937 [2020-10-12 13:54:55,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 1 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 13:54:55,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3937 states. [2020-10-12 13:54:55,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3937 to 3933. [2020-10-12 13:54:55,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3933 states. [2020-10-12 13:54:55,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 4496 transitions. [2020-10-12 13:54:55,065 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 4496 transitions. Word has length 1268 [2020-10-12 13:54:55,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:55,067 INFO L479 AbstractCegarLoop]: Abstraction has 3933 states and 4496 transitions. [2020-10-12 13:54:55,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:54:55,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 4496 transitions. [2020-10-12 13:54:55,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1274 [2020-10-12 13:54:55,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:55,095 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, 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, 9, 9, 9, 9, 9, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:54:55,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 13:54:55,096 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:55,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:55,096 INFO L82 PathProgramCache]: Analyzing trace with hash 750351330, now seen corresponding path program 1 times [2020-10-12 13:54:55,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:55,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119227286] [2020-10-12 13:54:55,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:55,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:55,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:57,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:59,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:59,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1301 [2020-10-12 13:54:59,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:54:59,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3831 [2020-10-12 13:54:59,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:54:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1234 [2020-10-12 13:54:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 13:54:59,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0