/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/heapsort.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:19:04,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:19:04,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:19:04,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:19:04,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:19:04,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:19:04,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:19:04,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:19:04,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:19:04,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:19:04,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:19:04,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:19:04,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:19:04,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:19:04,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:19:04,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:19:04,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:19:04,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:19:04,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:19:04,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:19:04,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:19:04,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:19:04,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:19:04,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:19:04,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:19:04,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:19:04,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:19:04,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:19:04,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:19:04,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:19:04,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:19:04,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:19:04,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:19:04,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:19:04,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:19:04,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:19:04,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:19:04,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:19:04,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:19:04,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:19:04,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:19:04,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 05:19:04,920 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:19:04,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:19:04,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:19:04,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:19:04,923 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:19:04,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:19:04,923 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:19:04,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:19:04,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:19:04,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:19:04,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:19:04,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:19:04,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:19:04,926 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:19:04,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:19:04,926 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:19:04,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:19:04,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:19:04,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:19:04,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:19:04,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:19:04,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:19:04,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:19:04,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:19:04,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:19:04,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:19:04,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:19:04,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:19:04,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:19:04,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 05:19:05,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:19:05,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:19:05,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:19:05,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:19:05,242 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:19:05,242 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/heapsort.i [2020-10-14 05:19:05,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b97fee2a0/ec4cc3ff23134ddabefa84619d11b592/FLAG1a301561d [2020-10-14 05:19:05,849 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:19:05,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/heapsort.i [2020-10-14 05:19:05,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b97fee2a0/ec4cc3ff23134ddabefa84619d11b592/FLAG1a301561d [2020-10-14 05:19:06,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b97fee2a0/ec4cc3ff23134ddabefa84619d11b592 [2020-10-14 05:19:06,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:19:06,245 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:19:06,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:19:06,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:19:06,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:19:06,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:19:06" (1/1) ... [2020-10-14 05:19:06,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13b2b23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:06, skipping insertion in model container [2020-10-14 05:19:06,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:19:06" (1/1) ... [2020-10-14 05:19:06,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:19:06,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:19:06,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:19:06,498 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:19:06,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:19:06,530 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:19:06,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:06 WrapperNode [2020-10-14 05:19:06,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:19:06,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:19:06,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:19:06,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:19:06,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:06" (1/1) ... [2020-10-14 05:19:06,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:06" (1/1) ... [2020-10-14 05:19:06,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:06" (1/1) ... [2020-10-14 05:19:06,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:06" (1/1) ... [2020-10-14 05:19:06,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:06" (1/1) ... [2020-10-14 05:19:06,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:06" (1/1) ... [2020-10-14 05:19:06,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:06" (1/1) ... [2020-10-14 05:19:06,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:19:06,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:19:06,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:19:06,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:19:06,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:19:06,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:19:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:19:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 05:19:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 05:19:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:19:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:19:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 05:19:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 05:19:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 05:19:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 05:19:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:19:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:19:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:19:06,972 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:19:06,972 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-14 05:19:06,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:19:06 BoogieIcfgContainer [2020-10-14 05:19:06,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:19:06,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:19:06,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:19:06,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:19:06,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:19:06" (1/3) ... [2020-10-14 05:19:06,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc25def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:19:06, skipping insertion in model container [2020-10-14 05:19:06,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:06" (2/3) ... [2020-10-14 05:19:06,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc25def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:19:06, skipping insertion in model container [2020-10-14 05:19:06,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:19:06" (3/3) ... [2020-10-14 05:19:06,986 INFO L109 eAbstractionObserver]: Analyzing ICFG heapsort.i [2020-10-14 05:19:06,996 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:19:07,004 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 05:19:07,016 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 05:19:07,038 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:19:07,039 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:19:07,039 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:19:07,039 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:19:07,039 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:19:07,039 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:19:07,039 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:19:07,039 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:19:07,056 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-10-14 05:19:07,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 05:19:07,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:07,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:07,063 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:07,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:07,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1398272466, now seen corresponding path program 1 times [2020-10-14 05:19:07,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:07,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032594483] [2020-10-14 05:19:07,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:07,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:07,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:07,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:07,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:07,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:07,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 05:19:07,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:19:07,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 561 [2020-10-14 05:19:07,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:07,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:07,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:19:07,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:07,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:19:07,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 05:19:07,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:07,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:07,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:07,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:07,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:07,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:07,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:07,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:07,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:07,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:07,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:07,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:07,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:19:07,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032594483] [2020-10-14 05:19:07,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:07,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:19:07,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080711864] [2020-10-14 05:19:07,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:19:07,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:07,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:19:07,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:19:07,879 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 5 states. [2020-10-14 05:19:08,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:08,126 INFO L93 Difference]: Finished difference Result 87 states and 147 transitions. [2020-10-14 05:19:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:19:08,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-14 05:19:08,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:08,139 INFO L225 Difference]: With dead ends: 87 [2020-10-14 05:19:08,139 INFO L226 Difference]: Without dead ends: 43 [2020-10-14 05:19:08,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:19:08,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-14 05:19:08,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2020-10-14 05:19:08,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-14 05:19:08,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2020-10-14 05:19:08,196 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 60 transitions. Word has length 14 [2020-10-14 05:19:08,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:08,197 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 60 transitions. [2020-10-14 05:19:08,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:19:08,197 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2020-10-14 05:19:08,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 05:19:08,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:08,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:08,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:19:08,200 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:08,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:08,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1393535697, now seen corresponding path program 1 times [2020-10-14 05:19:08,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:08,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346039666] [2020-10-14 05:19:08,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:08,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:08,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:08,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:08,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:08,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:08,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 05:19:08,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:19:08,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-14 05:19:08,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:08,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:08,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:19:08,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:19:08,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:19:08,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:08,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:08,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:08,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:08,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:08,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:08,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:08,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:08,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:08,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:08,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:08,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:08,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:19:08,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346039666] [2020-10-14 05:19:08,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:08,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:19:08,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945729756] [2020-10-14 05:19:08,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:19:08,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:08,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:19:08,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:19:08,425 INFO L87 Difference]: Start difference. First operand 42 states and 60 transitions. Second operand 5 states. [2020-10-14 05:19:08,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:08,539 INFO L93 Difference]: Finished difference Result 70 states and 104 transitions. [2020-10-14 05:19:08,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:19:08,539 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-14 05:19:08,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:08,541 INFO L225 Difference]: With dead ends: 70 [2020-10-14 05:19:08,542 INFO L226 Difference]: Without dead ends: 68 [2020-10-14 05:19:08,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:19:08,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-14 05:19:08,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 46. [2020-10-14 05:19:08,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-14 05:19:08,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 63 transitions. [2020-10-14 05:19:08,558 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 63 transitions. Word has length 14 [2020-10-14 05:19:08,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:08,558 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 63 transitions. [2020-10-14 05:19:08,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:19:08,559 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 63 transitions. [2020-10-14 05:19:08,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 05:19:08,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:08,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:08,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 05:19:08,560 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:08,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:08,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1431966087, now seen corresponding path program 1 times [2020-10-14 05:19:08,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:08,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291396155] [2020-10-14 05:19:08,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:08,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:08,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:08,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:08,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:08,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 05:19:08,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:19:08,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-14 05:19:08,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:08,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:08,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:19:08,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:08,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:19:08,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:08,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:08,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:08,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:08,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:08,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:08,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:08,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:08,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:08,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:19:08,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291396155] [2020-10-14 05:19:08,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:08,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:19:08,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298531328] [2020-10-14 05:19:08,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:19:08,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:08,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:19:08,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:19:08,776 INFO L87 Difference]: Start difference. First operand 46 states and 63 transitions. Second operand 6 states. [2020-10-14 05:19:08,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:08,973 INFO L93 Difference]: Finished difference Result 79 states and 114 transitions. [2020-10-14 05:19:08,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 05:19:08,974 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-14 05:19:08,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:08,977 INFO L225 Difference]: With dead ends: 79 [2020-10-14 05:19:08,977 INFO L226 Difference]: Without dead ends: 77 [2020-10-14 05:19:08,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:19:08,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-14 05:19:08,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2020-10-14 05:19:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-14 05:19:08,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 97 transitions. [2020-10-14 05:19:08,998 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 97 transitions. Word has length 14 [2020-10-14 05:19:08,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:08,999 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 97 transitions. [2020-10-14 05:19:08,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:19:08,999 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 97 transitions. [2020-10-14 05:19:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 05:19:09,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:09,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:09,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 05:19:09,001 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:09,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:09,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1419721986, now seen corresponding path program 1 times [2020-10-14 05:19:09,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:09,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556069260] [2020-10-14 05:19:09,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:09,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:09,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:09,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 05:19:09,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:09,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 05:19:09,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:09,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:19:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:19:09,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:19:09,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:09,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:09,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:09,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:09,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:09,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:09,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:09,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:09,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:09,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:09,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:09,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:09,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:19:09,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556069260] [2020-10-14 05:19:09,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:09,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:19:09,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465861142] [2020-10-14 05:19:09,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:19:09,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:09,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:19:09,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:19:09,142 INFO L87 Difference]: Start difference. First operand 67 states and 97 transitions. Second operand 6 states. [2020-10-14 05:19:09,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:09,379 INFO L93 Difference]: Finished difference Result 121 states and 182 transitions. [2020-10-14 05:19:09,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:19:09,379 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-14 05:19:09,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:09,382 INFO L225 Difference]: With dead ends: 121 [2020-10-14 05:19:09,382 INFO L226 Difference]: Without dead ends: 119 [2020-10-14 05:19:09,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:19:09,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-14 05:19:09,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 93. [2020-10-14 05:19:09,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-14 05:19:09,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 139 transitions. [2020-10-14 05:19:09,402 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 139 transitions. Word has length 14 [2020-10-14 05:19:09,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:09,402 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 139 transitions. [2020-10-14 05:19:09,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:19:09,402 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 139 transitions. [2020-10-14 05:19:09,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 05:19:09,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:09,404 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:09,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 05:19:09,404 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:09,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:09,404 INFO L82 PathProgramCache]: Analyzing trace with hash -373514647, now seen corresponding path program 1 times [2020-10-14 05:19:09,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:09,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1975530610] [2020-10-14 05:19:09,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:09,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:09,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:09,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:09,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:09,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 05:19:09,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:19:09,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 05:19:09,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:09,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:09,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:19:09,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:09,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 05:19:09,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:09,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:09,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:09,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:09,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:09,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:09,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:09,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:09,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:09,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:09,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:09,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:09,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:09,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:09,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:09,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:09,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:09,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:09,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:09,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:09,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:09,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:09,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:19:09,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1975530610] [2020-10-14 05:19:09,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:09,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:19:09,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237178312] [2020-10-14 05:19:09,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:19:09,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:09,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:19:09,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:19:09,569 INFO L87 Difference]: Start difference. First operand 93 states and 139 transitions. Second operand 5 states. [2020-10-14 05:19:09,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:09,638 INFO L93 Difference]: Finished difference Result 99 states and 144 transitions. [2020-10-14 05:19:09,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:19:09,638 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-14 05:19:09,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:09,640 INFO L225 Difference]: With dead ends: 99 [2020-10-14 05:19:09,640 INFO L226 Difference]: Without dead ends: 97 [2020-10-14 05:19:09,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:19:09,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-14 05:19:09,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-14 05:19:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-14 05:19:09,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 142 transitions. [2020-10-14 05:19:09,657 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 142 transitions. Word has length 19 [2020-10-14 05:19:09,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:09,657 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 142 transitions. [2020-10-14 05:19:09,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:19:09,658 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 142 transitions. [2020-10-14 05:19:09,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 05:19:09,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:09,659 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:09,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 05:19:09,659 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:09,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:09,660 INFO L82 PathProgramCache]: Analyzing trace with hash -754877110, now seen corresponding path program 1 times [2020-10-14 05:19:09,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:09,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084805202] [2020-10-14 05:19:09,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:09,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:09,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:09,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:09,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 05:19:09,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:19:09,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 05:19:09,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:09,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:09,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:19:09,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:09,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 05:19:09,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:09,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:09,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:09,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:09,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:09,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:09,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:09,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:09,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:09,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:09,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:09,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:09,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:09,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:09,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:09,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:09,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:09,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:09,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:09,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:09,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:09,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:09,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:09,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:09,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:19:09,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1084805202] [2020-10-14 05:19:09,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:09,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:19:09,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323535007] [2020-10-14 05:19:09,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:19:09,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:09,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:19:09,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:19:09,804 INFO L87 Difference]: Start difference. First operand 97 states and 142 transitions. Second operand 6 states. [2020-10-14 05:19:09,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:09,983 INFO L93 Difference]: Finished difference Result 167 states and 261 transitions. [2020-10-14 05:19:09,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:19:09,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-14 05:19:09,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:09,987 INFO L225 Difference]: With dead ends: 167 [2020-10-14 05:19:09,987 INFO L226 Difference]: Without dead ends: 165 [2020-10-14 05:19:09,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:19:09,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-14 05:19:10,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-10-14 05:19:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-14 05:19:10,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 259 transitions. [2020-10-14 05:19:10,015 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 259 transitions. Word has length 19 [2020-10-14 05:19:10,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:10,016 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 259 transitions. [2020-10-14 05:19:10,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:19:10,016 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 259 transitions. [2020-10-14 05:19:10,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 05:19:10,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:10,017 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:10,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 05:19:10,018 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:10,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:10,018 INFO L82 PathProgramCache]: Analyzing trace with hash -215332396, now seen corresponding path program 1 times [2020-10-14 05:19:10,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:10,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1906463635] [2020-10-14 05:19:10,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:10,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:10,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 05:19:10,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:19:10,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 05:19:10,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:10,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:19:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 05:19:10,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:10,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:10,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:10,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:10,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:10,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:10,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:10,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:10,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:10,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:10,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:10,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:10,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:10,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 05:19:10,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:10,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:10,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 05:19:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:19:10,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1906463635] [2020-10-14 05:19:10,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:10,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 05:19:10,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217402640] [2020-10-14 05:19:10,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:19:10,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:10,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:19:10,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:19:10,205 INFO L87 Difference]: Start difference. First operand 165 states and 259 transitions. Second operand 7 states. [2020-10-14 05:19:10,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:10,510 INFO L93 Difference]: Finished difference Result 264 states and 428 transitions. [2020-10-14 05:19:10,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 05:19:10,511 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-14 05:19:10,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:10,514 INFO L225 Difference]: With dead ends: 264 [2020-10-14 05:19:10,514 INFO L226 Difference]: Without dead ends: 262 [2020-10-14 05:19:10,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:19:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-14 05:19:10,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 233. [2020-10-14 05:19:10,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-14 05:19:10,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 382 transitions. [2020-10-14 05:19:10,553 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 382 transitions. Word has length 19 [2020-10-14 05:19:10,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:10,553 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 382 transitions. [2020-10-14 05:19:10,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:19:10,554 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 382 transitions. [2020-10-14 05:19:10,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 05:19:10,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:10,555 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:10,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 05:19:10,556 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:10,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:10,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1341683124, now seen corresponding path program 1 times [2020-10-14 05:19:10,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:10,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2130667127] [2020-10-14 05:19:10,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:10,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:10,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 05:19:10,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:19:10,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 05:19:10,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:10,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:19:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 05:19:10,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 05:19:10,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:10,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:10,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:10,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:10,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:10,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:10,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:10,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:10,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:10,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:10,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:10,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:10,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:10,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:10,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:10,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:10,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:10,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:10,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:10,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:10,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:10,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:10,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:19:10,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2130667127] [2020-10-14 05:19:10,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:10,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 05:19:10,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228256543] [2020-10-14 05:19:10,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 05:19:10,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:10,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 05:19:10,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 05:19:10,686 INFO L87 Difference]: Start difference. First operand 233 states and 382 transitions. Second operand 3 states. [2020-10-14 05:19:10,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:10,728 INFO L93 Difference]: Finished difference Result 424 states and 699 transitions. [2020-10-14 05:19:10,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 05:19:10,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-14 05:19:10,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:10,733 INFO L225 Difference]: With dead ends: 424 [2020-10-14 05:19:10,734 INFO L226 Difference]: Without dead ends: 262 [2020-10-14 05:19:10,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 05:19:10,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-14 05:19:10,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-14 05:19:10,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-14 05:19:10,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 433 transitions. [2020-10-14 05:19:10,772 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 433 transitions. Word has length 19 [2020-10-14 05:19:10,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:10,772 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 433 transitions. [2020-10-14 05:19:10,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 05:19:10,772 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 433 transitions. [2020-10-14 05:19:10,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 05:19:10,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:10,773 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:10,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 05:19:10,774 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:10,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:10,774 INFO L82 PathProgramCache]: Analyzing trace with hash -802138410, now seen corresponding path program 1 times [2020-10-14 05:19:10,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:10,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895231161] [2020-10-14 05:19:10,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:10,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:10,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 05:19:10,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:19:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 05:19:10,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:10,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:19:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:10,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 05:19:10,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:10,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:10,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:10,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:10,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:10,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:10,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:10,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:10,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:10,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:10,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:10,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:10,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:10,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:10,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:10,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:10,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:10,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:10,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:10,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:10,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:10,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:10,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:19:10,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895231161] [2020-10-14 05:19:10,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:10,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:19:10,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641928954] [2020-10-14 05:19:10,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:19:10,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:10,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:19:10,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:19:10,952 INFO L87 Difference]: Start difference. First operand 262 states and 433 transitions. Second operand 4 states. [2020-10-14 05:19:11,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:11,006 INFO L93 Difference]: Finished difference Result 281 states and 448 transitions. [2020-10-14 05:19:11,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 05:19:11,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-14 05:19:11,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:11,009 INFO L225 Difference]: With dead ends: 281 [2020-10-14 05:19:11,009 INFO L226 Difference]: Without dead ends: 240 [2020-10-14 05:19:11,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:19:11,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-14 05:19:11,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-10-14 05:19:11,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-10-14 05:19:11,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 394 transitions. [2020-10-14 05:19:11,042 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 394 transitions. Word has length 19 [2020-10-14 05:19:11,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:11,042 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 394 transitions. [2020-10-14 05:19:11,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:19:11,042 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 394 transitions. [2020-10-14 05:19:11,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-14 05:19:11,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:11,044 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:11,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 05:19:11,044 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:11,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:11,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1823211956, now seen corresponding path program 1 times [2020-10-14 05:19:11,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:11,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917128030] [2020-10-14 05:19:11,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:11,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:11,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:11,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:11,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:11,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:19:11,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:19:11,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-14 05:19:11,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:11,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:19:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:19:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 05:19:11,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:11,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:11,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:11,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:11,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:11,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:11,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:11,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:11,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:11,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:11,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:11,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:11,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:11,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:11,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:11,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:11,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:11,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:11,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:19:11,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:11,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:11,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:11,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:11,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:11,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:11,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:11,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:11,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:11,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:11,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:11,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:19:11,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:11,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:11,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 05:19:11,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917128030] [2020-10-14 05:19:11,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:11,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:19:11,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288970188] [2020-10-14 05:19:11,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:19:11,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:11,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:19:11,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:19:11,296 INFO L87 Difference]: Start difference. First operand 240 states and 394 transitions. Second operand 6 states. [2020-10-14 05:19:11,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:11,461 INFO L93 Difference]: Finished difference Result 274 states and 446 transitions. [2020-10-14 05:19:11,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:19:11,461 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-14 05:19:11,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:11,468 INFO L225 Difference]: With dead ends: 274 [2020-10-14 05:19:11,468 INFO L226 Difference]: Without dead ends: 272 [2020-10-14 05:19:11,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:19:11,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-10-14 05:19:11,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 254. [2020-10-14 05:19:11,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-14 05:19:11,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 415 transitions. [2020-10-14 05:19:11,514 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 415 transitions. Word has length 26 [2020-10-14 05:19:11,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:11,514 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 415 transitions. [2020-10-14 05:19:11,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:19:11,514 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 415 transitions. [2020-10-14 05:19:11,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 05:19:11,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:11,515 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:11,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 05:19:11,516 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:11,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:11,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1717082940, now seen corresponding path program 1 times [2020-10-14 05:19:11,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:11,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847434371] [2020-10-14 05:19:11,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:11,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:11,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:11,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:11,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:11,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 05:19:11,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:19:11,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-14 05:19:11,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:11,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:19:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:11,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 05:19:11,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:11,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:11,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:11,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:11,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:11,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:11,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:11,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:11,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:11,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:11,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:11,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:11,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:11,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:11,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:11,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:11,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:19:11,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:11,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:11,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:11,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:11,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:11,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:11,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:11,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:11,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:11,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:11,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:11,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:11,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:11,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:11,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:11,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:11,856 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 05:19:11,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847434371] [2020-10-14 05:19:11,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:11,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:19:11,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271135119] [2020-10-14 05:19:11,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:19:11,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:11,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:19:11,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:19:11,860 INFO L87 Difference]: Start difference. First operand 254 states and 415 transitions. Second operand 5 states. [2020-10-14 05:19:12,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:12,243 INFO L93 Difference]: Finished difference Result 683 states and 1141 transitions. [2020-10-14 05:19:12,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:19:12,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-14 05:19:12,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:12,253 INFO L225 Difference]: With dead ends: 683 [2020-10-14 05:19:12,254 INFO L226 Difference]: Without dead ends: 475 [2020-10-14 05:19:12,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:19:12,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2020-10-14 05:19:12,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 254. [2020-10-14 05:19:12,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-14 05:19:12,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 413 transitions. [2020-10-14 05:19:12,330 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 413 transitions. Word has length 28 [2020-10-14 05:19:12,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:12,330 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 413 transitions. [2020-10-14 05:19:12,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:19:12,330 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 413 transitions. [2020-10-14 05:19:12,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-14 05:19:12,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:12,334 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:12,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 05:19:12,334 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:12,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:12,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1309395559, now seen corresponding path program 1 times [2020-10-14 05:19:12,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:12,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53734114] [2020-10-14 05:19:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:12,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:12,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:12,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 05:19:12,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:12,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 05:19:12,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:12,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:12,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:19:12,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:12,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 05:19:12,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:12,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:12,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:12,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:12,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:12,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:12,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:12,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:12,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:12,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:12,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:12,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:12,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:12,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:12,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:12,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:12,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:12,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:12,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:12,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:12,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:12,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:12,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:12,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:12,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:12,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:12,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:12,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:12,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:12,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:12,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:12,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:12,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:12,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:12,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 05:19:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:12,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:12,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:12,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:12,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:12,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:19:12,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:12,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:12,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 05:19:12,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53734114] [2020-10-14 05:19:12,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:12,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:19:12,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004810264] [2020-10-14 05:19:12,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:19:12,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:12,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:19:12,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:19:12,479 INFO L87 Difference]: Start difference. First operand 254 states and 413 transitions. Second operand 6 states. [2020-10-14 05:19:12,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:12,710 INFO L93 Difference]: Finished difference Result 350 states and 571 transitions. [2020-10-14 05:19:12,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:19:12,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-14 05:19:12,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:12,715 INFO L225 Difference]: With dead ends: 350 [2020-10-14 05:19:12,716 INFO L226 Difference]: Without dead ends: 348 [2020-10-14 05:19:12,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:19:12,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-14 05:19:12,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 326. [2020-10-14 05:19:12,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-14 05:19:12,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 539 transitions. [2020-10-14 05:19:12,773 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 539 transitions. Word has length 29 [2020-10-14 05:19:12,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:12,774 INFO L479 AbstractCegarLoop]: Abstraction has 326 states and 539 transitions. [2020-10-14 05:19:12,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:19:12,774 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 539 transitions. [2020-10-14 05:19:12,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 05:19:12,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:12,776 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:12,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 05:19:12,776 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:12,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:12,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1863794769, now seen corresponding path program 1 times [2020-10-14 05:19:12,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:12,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526027436] [2020-10-14 05:19:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:12,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:12,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:12,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:12,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:12,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:13,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:13,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:13,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:13,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 05:19:13,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 05:19:13,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-10-14 05:19:13,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:13,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:13,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:19:13,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:13,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 05:19:13,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:13,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:13,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:13,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:13,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:13,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:13,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:19:13,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:13,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:13,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:13,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:13,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:13,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:13,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:13,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:13,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:13,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:13,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:13,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:13,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:13,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:13,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:13,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:13,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:13,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:13,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:13,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:13,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:13,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:13,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:13,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:13,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:13,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:13,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 05:19:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:13,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:13,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:13,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:13,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:13,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:13,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:13,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:13,881 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 05:19:13,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526027436] [2020-10-14 05:19:13,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:13,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 05:19:13,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126563972] [2020-10-14 05:19:13,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:19:13,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:13,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:19:13,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:19:13,884 INFO L87 Difference]: Start difference. First operand 326 states and 539 transitions. Second operand 7 states. [2020-10-14 05:19:14,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:14,182 INFO L93 Difference]: Finished difference Result 386 states and 630 transitions. [2020-10-14 05:19:14,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:19:14,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-10-14 05:19:14,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:14,186 INFO L225 Difference]: With dead ends: 386 [2020-10-14 05:19:14,186 INFO L226 Difference]: Without dead ends: 384 [2020-10-14 05:19:14,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:19:14,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2020-10-14 05:19:14,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 344. [2020-10-14 05:19:14,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-10-14 05:19:14,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 568 transitions. [2020-10-14 05:19:14,250 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 568 transitions. Word has length 31 [2020-10-14 05:19:14,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:14,251 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 568 transitions. [2020-10-14 05:19:14,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:19:14,251 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 568 transitions. [2020-10-14 05:19:14,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 05:19:14,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:14,253 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:14,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 05:19:14,253 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:14,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:14,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1966021174, now seen corresponding path program 1 times [2020-10-14 05:19:14,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:14,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843501148] [2020-10-14 05:19:14,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:14,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:14,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:14,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:14,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 05:19:14,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:19:14,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-14 05:19:14,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:14,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:14,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:19:14,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:14,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 05:19:14,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:14,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:14,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:14,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:14,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:14,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:14,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:14,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:14,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:14,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:14,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:14,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:14,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:14,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:14,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:14,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:14,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:14,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:14,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:14,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:14,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:14,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:14,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:14,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:14,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:14,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:14,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:14,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:14,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:14,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:14,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:14,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:14,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:14,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:14,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 05:19:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:14,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:14,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:14,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:14,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:14,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:14,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:14,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:14,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:14,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:14,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:14,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:14,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 05:19:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:14,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:14,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:14,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:14,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:14,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:19:14,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 05:19:14,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:14,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:14,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:14,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:14,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:14,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:14,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 05:19:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:14,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:14,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:14,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:14,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:14,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:14,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:14,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:14,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:14,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:14,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:14,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:14,676 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 05:19:14,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843501148] [2020-10-14 05:19:14,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:14,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 05:19:14,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149443584] [2020-10-14 05:19:14,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:19:14,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:14,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:19:14,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:19:14,680 INFO L87 Difference]: Start difference. First operand 344 states and 568 transitions. Second operand 7 states. [2020-10-14 05:19:15,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:15,028 INFO L93 Difference]: Finished difference Result 388 states and 627 transitions. [2020-10-14 05:19:15,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 05:19:15,029 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-10-14 05:19:15,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:15,038 INFO L225 Difference]: With dead ends: 388 [2020-10-14 05:19:15,038 INFO L226 Difference]: Without dead ends: 386 [2020-10-14 05:19:15,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:19:15,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-14 05:19:15,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 348. [2020-10-14 05:19:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-10-14 05:19:15,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 571 transitions. [2020-10-14 05:19:15,124 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 571 transitions. Word has length 41 [2020-10-14 05:19:15,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:15,124 INFO L479 AbstractCegarLoop]: Abstraction has 348 states and 571 transitions. [2020-10-14 05:19:15,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:19:15,124 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 571 transitions. [2020-10-14 05:19:15,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 05:19:15,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:15,126 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:15,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 05:19:15,126 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:15,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:15,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1399054702, now seen corresponding path program 1 times [2020-10-14 05:19:15,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:15,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359990208] [2020-10-14 05:19:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:15,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:15,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:15,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 05:19:15,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:15,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 05:19:15,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:15,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:15,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:19:15,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 05:19:15,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 05:19:15,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:15,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:15,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:15,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:15,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:15,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:15,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:19:15,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:15,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:15,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:15,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:15,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:15,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:15,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:15,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:15,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:15,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:15,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:15,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:15,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:15,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:15,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:15,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:15,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:15,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:15,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:15,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:15,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:15,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:15,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:15,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:15,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:15,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:15,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:15,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 05:19:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:15,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:15,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:15,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:15,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:15,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:19:15,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:15,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:15,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:15,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 05:19:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:15,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:15,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:15,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:15,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:15,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:19:15,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:15,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:15,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:15,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:15,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:15,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:15,328 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 05:19:15,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359990208] [2020-10-14 05:19:15,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:15,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 05:19:15,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350344383] [2020-10-14 05:19:15,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:19:15,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:15,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:19:15,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:19:15,330 INFO L87 Difference]: Start difference. First operand 348 states and 571 transitions. Second operand 7 states. [2020-10-14 05:19:15,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:15,541 INFO L93 Difference]: Finished difference Result 354 states and 576 transitions. [2020-10-14 05:19:15,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:19:15,542 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-10-14 05:19:15,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:15,545 INFO L225 Difference]: With dead ends: 354 [2020-10-14 05:19:15,545 INFO L226 Difference]: Without dead ends: 352 [2020-10-14 05:19:15,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:19:15,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-10-14 05:19:15,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2020-10-14 05:19:15,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-10-14 05:19:15,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 574 transitions. [2020-10-14 05:19:15,619 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 574 transitions. Word has length 41 [2020-10-14 05:19:15,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:15,620 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 574 transitions. [2020-10-14 05:19:15,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:19:15,620 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 574 transitions. [2020-10-14 05:19:15,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 05:19:15,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:15,623 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:15,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 05:19:15,623 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:15,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:15,624 INFO L82 PathProgramCache]: Analyzing trace with hash 599459804, now seen corresponding path program 1 times [2020-10-14 05:19:15,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:15,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530616853] [2020-10-14 05:19:15,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:15,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:15,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:15,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:15,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:15,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:15,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:16,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:16,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 05:19:16,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 05:19:16,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1259 [2020-10-14 05:19:16,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:16,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:16,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:19:16,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:16,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 05:19:16,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:16,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:16,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:16,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:16,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:16,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:16,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:19:16,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:16,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:16,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:16,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:16,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:16,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:16,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:16,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:16,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:16,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:16,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:16,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:16,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:16,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:16,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:16,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:16,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:16,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:16,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:16,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:16,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:16,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:16,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:16,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:16,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:16,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:16,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:16,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:16,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:16,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:16,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 05:19:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:16,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:16,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:16,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:16,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:16,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:16,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:16,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:16,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:16,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:16,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:16,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:16,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 05:19:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:16,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:16,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:16,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:16,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:16,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:16,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:16,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:16,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:16,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:16,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:16,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:16,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 05:19:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:16,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:16,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:16,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:16,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:16,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:16,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:16,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:16,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:16,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:16,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 05:19:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:16,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:16,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:16,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:16,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:16,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:16,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:16,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:16,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:16,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:16,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:16,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 05:19:16,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530616853] [2020-10-14 05:19:16,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:19:16,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 05:19:16,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815936968] [2020-10-14 05:19:16,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:19:16,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:16,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:19:16,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:19:16,986 INFO L87 Difference]: Start difference. First operand 352 states and 574 transitions. Second operand 6 states. [2020-10-14 05:19:17,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:17,416 INFO L93 Difference]: Finished difference Result 812 states and 1355 transitions. [2020-10-14 05:19:17,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:19:17,417 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-10-14 05:19:17,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:17,423 INFO L225 Difference]: With dead ends: 812 [2020-10-14 05:19:17,423 INFO L226 Difference]: Without dead ends: 592 [2020-10-14 05:19:17,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:19:17,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-10-14 05:19:17,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 344. [2020-10-14 05:19:17,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-10-14 05:19:17,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 558 transitions. [2020-10-14 05:19:17,503 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 558 transitions. Word has length 53 [2020-10-14 05:19:17,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:17,503 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 558 transitions. [2020-10-14 05:19:17,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:19:17,503 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 558 transitions. [2020-10-14 05:19:17,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 05:19:17,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:17,505 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:17,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 05:19:17,506 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:17,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:17,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1868844760, now seen corresponding path program 1 times [2020-10-14 05:19:17,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:17,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842366387] [2020-10-14 05:19:17,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:17,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:17,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:17,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:17,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:17,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:17,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:17,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:18,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:18,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:18,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:18,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:18,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:18,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:18,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:18,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:18,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:19,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:22,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:22,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 05:19:22,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 05:19:22,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 05:19:22,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:22,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:22,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:19:22,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:22,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 05:19:22,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:22,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:22,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:22,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:22,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:22,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:22,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:22,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:22,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:22,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:22,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:22,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:22,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:22,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:22,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:22,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:22,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:22,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:22,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:22,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:22,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:22,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:22,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:22,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:22,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:22,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:22,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:22,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:22,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:22,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:22,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:22,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:22,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:22,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 05:19:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:22,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:22,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:22,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:22,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:22,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:22,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:22,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:22,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:22,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 05:19:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:22,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:22,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:22,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:22,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:22,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:22,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:22,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:22,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:22,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 05:19:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:22,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:22,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:22,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:22,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:22,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:22,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:22,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:22,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:22,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:22,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:22,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:22,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 05:19:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:22,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:22,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:22,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:22,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:22,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:22,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:22,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:22,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:22,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:22,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:22,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:22,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 05:19:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:22,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:22,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:22,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:22,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:22,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:22,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:22,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:22,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:22,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:22,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 05:19:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:22,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:22,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:22,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:22,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:22,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:22,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:22,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:22,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:22,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:22,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:22,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:22,628 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 05:19:22,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842366387] [2020-10-14 05:19:22,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:19:22,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 05:19:22,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796985628] [2020-10-14 05:19:22,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:19:22,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:22,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:19:22,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:19:22,631 INFO L87 Difference]: Start difference. First operand 344 states and 558 transitions. Second operand 6 states. [2020-10-14 05:19:22,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:22,922 INFO L93 Difference]: Finished difference Result 636 states and 1017 transitions. [2020-10-14 05:19:22,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 05:19:22,922 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-10-14 05:19:22,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:22,925 INFO L225 Difference]: With dead ends: 636 [2020-10-14 05:19:22,926 INFO L226 Difference]: Without dead ends: 281 [2020-10-14 05:19:22,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:19:22,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-14 05:19:22,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 263. [2020-10-14 05:19:22,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-14 05:19:22,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 408 transitions. [2020-10-14 05:19:22,971 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 408 transitions. Word has length 61 [2020-10-14 05:19:22,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:22,971 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 408 transitions. [2020-10-14 05:19:22,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:19:22,972 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 408 transitions. [2020-10-14 05:19:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-14 05:19:22,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:22,973 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:22,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 05:19:22,973 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:22,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:22,974 INFO L82 PathProgramCache]: Analyzing trace with hash -253175494, now seen corresponding path program 1 times [2020-10-14 05:19:22,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:22,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191195010] [2020-10-14 05:19:22,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:22,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:23,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 05:19:23,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:19:23,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-14 05:19:23,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:23,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:19:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 05:19:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 05:19:23,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:23,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:23,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:23,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:23,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:23,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:19:23,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:23,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:23,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:23,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:23,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:23,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:23,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:23,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:23,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:23,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:23,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:23,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:23,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:23,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:23,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:23,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:23,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:23,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:23,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:23,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:23,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:23,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:23,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:23,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:23,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:23,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 05:19:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:23,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:23,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:23,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:23,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:23,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:23,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:23,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:23,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:23,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:23,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:23,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 05:19:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:23,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:23,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:23,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:23,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:23,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:23,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:23,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:23,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:23,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 05:19:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:23,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:23,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:23,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:23,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:23,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:23,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:23,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:23,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 05:19:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:23,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:23,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:23,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:23,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:23,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:23,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:23,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:23,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:23,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:23,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:23,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 05:19:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:23,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:23,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:23,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:23,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:23,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:23,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:23,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:23,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:23,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:23,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 05:19:23,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 05:19:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:23,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:23,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:23,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:23,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:23,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:23,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:23,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:23,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:23,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:23,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:23,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 05:19:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:23,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:23,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:23,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:23,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:23,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:23,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:23,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:23,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:23,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:23,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:23,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 05:19:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:23,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:23,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:23,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:23,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:23,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:23,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:23,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:23,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:23,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:23,498 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 05:19:23,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191195010] [2020-10-14 05:19:23,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:19:23,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 05:19:23,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541212816] [2020-10-14 05:19:23,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:19:23,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:23,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:19:23,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:19:23,507 INFO L87 Difference]: Start difference. First operand 263 states and 408 transitions. Second operand 7 states. [2020-10-14 05:19:23,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:23,712 INFO L93 Difference]: Finished difference Result 287 states and 440 transitions. [2020-10-14 05:19:23,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 05:19:23,713 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2020-10-14 05:19:23,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:23,715 INFO L225 Difference]: With dead ends: 287 [2020-10-14 05:19:23,716 INFO L226 Difference]: Without dead ends: 285 [2020-10-14 05:19:23,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:19:23,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-14 05:19:23,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 267. [2020-10-14 05:19:23,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-10-14 05:19:23,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 411 transitions. [2020-10-14 05:19:23,761 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 411 transitions. Word has length 75 [2020-10-14 05:19:23,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:23,762 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 411 transitions. [2020-10-14 05:19:23,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:19:23,762 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 411 transitions. [2020-10-14 05:19:23,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 05:19:23,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:23,768 INFO L422 BasicCegarLoop]: trace histogram [17, 16, 16, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 05:19:23,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 05:19:23,769 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:23,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:23,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1914150186, now seen corresponding path program 1 times [2020-10-14 05:19:23,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:23,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753361392] [2020-10-14 05:19:23,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:23,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:23,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:24,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:24,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:25,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:25,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:25,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:25,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:25,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:25,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:25,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:25,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:26,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 05:19:28,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 05:19:28,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 05:19:28,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:19:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:19:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 05:19:28,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:28,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:28,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:28,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:28,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:28,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:28,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:28,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:28,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:28,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:28,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:28,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:28,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:28,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:28,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:28,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:28,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:28,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:28,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 05:19:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:28,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:28,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:19:28,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 05:19:28,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:28,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:28,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 05:19:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:28,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:28,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:28,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:28,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:28,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:28,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 05:19:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:28,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:28,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:19:28,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:19:28,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:28,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:28,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:28,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:28,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 05:19:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:28,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:28,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:28,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:28,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:28,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:28,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:28,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:28,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 05:19:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:28,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:28,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:19:28,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:19:28,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:28,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:28,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:28,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:28,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 05:19:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:28,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:28,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:28,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:28,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:28,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:28,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 05:19:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:28,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:28,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:19:28,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:19:28,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:28,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:28,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 05:19:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:28,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:28,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:28,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:28,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:28,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:28,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:28,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:28,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 05:19:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:28,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:28,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:28,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:28,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:28,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:28,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:28,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:28,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:28,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 05:19:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:29,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:29,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:29,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:29,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:29,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:29,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:29,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:29,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:29,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:29,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:29,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:29,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 05:19:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:29,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:29,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:29,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:29,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:29,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:19:29,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:19:29,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:29,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:29,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:29,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 05:19:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:29,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:29,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:29,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:29,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:29,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:29,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:29,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:29,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:29,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:29,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:29,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:29,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 05:19:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:29,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:29,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:29,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:29,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:29,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:29,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:29,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:29,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:29,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 05:19:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:29,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:29,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:29,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:29,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:29,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:29,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:29,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:29,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:29,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:29,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:29,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 32 proven. 20 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-14 05:19:29,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753361392] [2020-10-14 05:19:29,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:19:29,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 05:19:29,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594813873] [2020-10-14 05:19:29,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:19:29,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:29,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:19:29,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:19:29,064 INFO L87 Difference]: Start difference. First operand 267 states and 411 transitions. Second operand 9 states. [2020-10-14 05:19:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:29,583 INFO L93 Difference]: Finished difference Result 421 states and 670 transitions. [2020-10-14 05:19:29,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 05:19:29,584 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-10-14 05:19:29,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:29,588 INFO L225 Difference]: With dead ends: 421 [2020-10-14 05:19:29,588 INFO L226 Difference]: Without dead ends: 419 [2020-10-14 05:19:29,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:19:29,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-10-14 05:19:29,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 383. [2020-10-14 05:19:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-10-14 05:19:29,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 610 transitions. [2020-10-14 05:19:29,660 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 610 transitions. Word has length 110 [2020-10-14 05:19:29,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:29,660 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 610 transitions. [2020-10-14 05:19:29,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:19:29,660 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 610 transitions. [2020-10-14 05:19:29,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 05:19:29,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:29,666 INFO L422 BasicCegarLoop]: trace histogram [17, 16, 16, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 05:19:29,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 05:19:29,666 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:29,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:29,667 INFO L82 PathProgramCache]: Analyzing trace with hash -842477080, now seen corresponding path program 1 times [2020-10-14 05:19:29,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:29,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793370474] [2020-10-14 05:19:29,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:29,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:29,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:29,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:29,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:29,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:29,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:29,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:30,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 05:19:34,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 05:19:34,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 05:19:34,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:19:34,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:34,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 05:19:34,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:34,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:34,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:19:34,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:34,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:34,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:34,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:34,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:34,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:34,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 05:19:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:34,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:34,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 05:19:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:34,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:34,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 05:19:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:34,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:34,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 05:19:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:34,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:34,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 05:19:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:34,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:34,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 05:19:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:34,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 05:19:34,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 05:19:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:34,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:34,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 05:19:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:34,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:34,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 05:19:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:34,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:34,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 05:19:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:34,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:34,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 05:19:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:34,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:34,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 05:19:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:34,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:34,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 05:19:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:34,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:34,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 05:19:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:34,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:34,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:34,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:34,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:34,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:19:34,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:34,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:34,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:34,887 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 32 proven. 13 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2020-10-14 05:19:34,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793370474] [2020-10-14 05:19:34,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:19:34,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 05:19:34,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307171553] [2020-10-14 05:19:34,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:19:34,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:34,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:19:34,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:19:34,889 INFO L87 Difference]: Start difference. First operand 383 states and 610 transitions. Second operand 7 states. [2020-10-14 05:19:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:35,163 INFO L93 Difference]: Finished difference Result 448 states and 695 transitions. [2020-10-14 05:19:35,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 05:19:35,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-14 05:19:35,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:35,167 INFO L225 Difference]: With dead ends: 448 [2020-10-14 05:19:35,167 INFO L226 Difference]: Without dead ends: 446 [2020-10-14 05:19:35,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:19:35,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-10-14 05:19:35,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 409. [2020-10-14 05:19:35,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-10-14 05:19:35,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 640 transitions. [2020-10-14 05:19:35,247 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 640 transitions. Word has length 110 [2020-10-14 05:19:35,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:35,248 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 640 transitions. [2020-10-14 05:19:35,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:19:35,248 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 640 transitions. [2020-10-14 05:19:35,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 05:19:35,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:35,251 INFO L422 BasicCegarLoop]: trace histogram [18, 17, 17, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 05:19:35,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 05:19:35,251 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:35,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:35,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1936999535, now seen corresponding path program 2 times [2020-10-14 05:19:35,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:35,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779048972] [2020-10-14 05:19:35,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:35,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:35,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:35,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:35,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:35,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:35,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:35,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:35,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:35,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:36,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:36,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:36,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:37,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:37,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:37,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:37,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:37,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:37,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-14 05:19:40,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 05:19:40,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 05:19:40,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:19:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:19:40,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 05:19:40,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:40,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:19:40,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:40,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:40,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 05:19:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 05:19:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 05:19:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 05:19:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 05:19:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 05:19:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:40,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 05:19:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 05:19:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 05:19:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 05:19:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 05:19:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 05:19:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:40,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 05:19:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 05:19:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:40,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 05:19:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:40,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:40,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:40,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:40,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:40,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:40,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:40,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:40,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:40,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:40,482 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 34 proven. 14 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-10-14 05:19:40,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779048972] [2020-10-14 05:19:40,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:19:40,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 05:19:40,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316245719] [2020-10-14 05:19:40,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:19:40,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:40,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:19:40,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:19:40,484 INFO L87 Difference]: Start difference. First operand 409 states and 640 transitions. Second operand 7 states. [2020-10-14 05:19:40,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:40,694 INFO L93 Difference]: Finished difference Result 426 states and 661 transitions. [2020-10-14 05:19:40,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:19:40,695 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2020-10-14 05:19:40,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:40,699 INFO L225 Difference]: With dead ends: 426 [2020-10-14 05:19:40,699 INFO L226 Difference]: Without dead ends: 424 [2020-10-14 05:19:40,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:19:40,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-14 05:19:40,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 413. [2020-10-14 05:19:40,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-10-14 05:19:40,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 643 transitions. [2020-10-14 05:19:40,758 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 643 transitions. Word has length 115 [2020-10-14 05:19:40,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:40,758 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 643 transitions. [2020-10-14 05:19:40,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:19:40,758 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 643 transitions. [2020-10-14 05:19:40,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-14 05:19:40,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:40,761 INFO L422 BasicCegarLoop]: trace histogram [21, 20, 20, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:19:40,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 05:19:40,761 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:40,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:40,762 INFO L82 PathProgramCache]: Analyzing trace with hash -2139729338, now seen corresponding path program 1 times [2020-10-14 05:19:40,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:40,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627944756] [2020-10-14 05:19:40,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:40,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:40,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 05:19:45,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 05:19:45,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 05:19:45,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 05:19:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 05:19:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 05:19:45,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:45,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:45,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:19:45,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:45,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:45,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:45,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:45,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:45,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:45,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:45,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 05:19:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:45,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:45,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 05:19:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:45,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:45,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 05:19:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:45,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:45,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 05:19:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:45,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:45,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 05:19:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:45,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:45,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 05:19:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:45,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:45,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 05:19:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:45,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:45,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 05:19:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:45,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:45,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 05:19:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:19:45,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 05:19:45,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 05:19:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:45,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:45,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 05:19:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:45,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:45,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:45,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:45,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:45,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:45,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:45,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:45,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:45,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 05:19:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:45,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:46,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:46,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:46,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:46,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 05:19:46,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:46,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:46,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:46,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 05:19:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:46,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:46,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:46,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:46,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:46,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:19:46,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:46,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:46,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:19:46,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 05:19:46,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:46,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:46,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 05:19:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:46,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:46,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:46,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:46,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:46,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:46,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:46,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:46,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:46,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:46,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:46,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 05:19:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:46,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:46,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:46,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:46,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:46,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:46,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:46,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:46,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 05:19:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:46,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:46,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:46,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:46,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:46,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:46,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:46,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:46,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:46,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:46,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:46,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 05:19:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:46,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:46,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:46,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:46,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:46,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:46,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:46,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:46,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:46,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:46,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:46,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:46,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 05:19:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:46,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:46,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:46,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:46,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:46,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:46,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:46,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 05:19:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:46,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:46,134 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 100 proven. 23 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2020-10-14 05:19:46,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627944756] [2020-10-14 05:19:46,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:19:46,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 05:19:46,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458902590] [2020-10-14 05:19:46,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 05:19:46,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:46,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 05:19:46,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:19:46,137 INFO L87 Difference]: Start difference. First operand 413 states and 643 transitions. Second operand 10 states. [2020-10-14 05:19:47,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:47,380 INFO L93 Difference]: Finished difference Result 938 states and 1484 transitions. [2020-10-14 05:19:47,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 05:19:47,380 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 132 [2020-10-14 05:19:47,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:47,387 INFO L225 Difference]: With dead ends: 938 [2020-10-14 05:19:47,387 INFO L226 Difference]: Without dead ends: 446 [2020-10-14 05:19:47,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2020-10-14 05:19:47,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-10-14 05:19:47,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 360. [2020-10-14 05:19:47,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-14 05:19:47,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 548 transitions. [2020-10-14 05:19:47,453 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 548 transitions. Word has length 132 [2020-10-14 05:19:47,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:47,453 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 548 transitions. [2020-10-14 05:19:47,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 05:19:47,454 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 548 transitions. [2020-10-14 05:19:47,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-14 05:19:47,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:19:47,471 INFO L422 BasicCegarLoop]: trace histogram [25, 24, 24, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 05:19:47,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 05:19:47,471 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:19:47,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:19:47,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1127164452, now seen corresponding path program 1 times [2020-10-14 05:19:47,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:19:47,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453244393] [2020-10-14 05:19:47,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:19:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:47,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:47,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:47,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:47,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:47,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:48,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-14 05:19:52,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 05:19:52,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 05:19:52,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:19:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-14 05:19:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 05:19:52,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:19:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 05:19:52,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:19:52,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:52,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:19:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:52,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:52,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 05:19:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 05:19:52,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:52,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:52,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 05:19:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:52,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:52,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 05:19:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:52,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:52,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 05:19:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:52,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:52,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:52,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 05:19:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:52,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:19:52,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:19:52,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 05:19:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:52,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 05:19:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:52,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 05:19:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:52,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 05:19:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:52,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 05:19:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:52,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 05:19:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:52,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 05:19:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:52,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 05:19:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:52,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:52,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 05:19:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:52,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:52,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 05:19:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:52,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:52,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 05:19:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:52,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:52,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 05:19:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:19:52,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:52,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 05:19:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:52,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 05:19:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:52,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:52,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 05:19:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:52,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:52,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-14 05:19:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:52,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:52,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 05:19:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:52,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:19:52,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 05:19:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:19:52,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:19:52,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:19:52,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:19:52,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:19:52,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:19:52,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:19:52,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:19:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:19:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:19:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:19:52,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:19:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 73 proven. 13 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-10-14 05:19:52,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1453244393] [2020-10-14 05:19:52,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:19:52,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 05:19:52,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301858641] [2020-10-14 05:19:52,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:19:52,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:19:52,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:19:52,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:19:52,751 INFO L87 Difference]: Start difference. First operand 360 states and 548 transitions. Second operand 8 states. [2020-10-14 05:19:53,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:19:53,108 INFO L93 Difference]: Finished difference Result 388 states and 589 transitions. [2020-10-14 05:19:53,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 05:19:53,109 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 154 [2020-10-14 05:19:53,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:19:53,109 INFO L225 Difference]: With dead ends: 388 [2020-10-14 05:19:53,109 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 05:19:53,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-14 05:19:53,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 05:19:53,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 05:19:53,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 05:19:53,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 05:19:53,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2020-10-14 05:19:53,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:19:53,113 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 05:19:53,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:19:53,113 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 05:19:53,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 05:19:53,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 05:19:53,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 05:19:53,846 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 126 [2020-10-14 05:19:54,084 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 94 [2020-10-14 05:19:54,486 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 88 [2020-10-14 05:19:54,662 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 110 [2020-10-14 05:19:54,810 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 88 [2020-10-14 05:19:55,164 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 116 [2020-10-14 05:19:55,618 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 88 [2020-10-14 05:19:55,747 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 142 [2020-10-14 05:19:55,938 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 126 [2020-10-14 05:19:56,050 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 142 [2020-10-14 05:19:56,609 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 37 [2020-10-14 05:19:57,270 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 47 [2020-10-14 05:19:57,705 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 41 [2020-10-14 05:19:58,167 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 21 [2020-10-14 05:19:58,609 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 41 [2020-10-14 05:19:59,074 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 21 [2020-10-14 05:19:59,520 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 37 [2020-10-14 05:19:59,989 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 37 [2020-10-14 05:20:00,539 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 38 [2020-10-14 05:20:01,001 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 37 [2020-10-14 05:20:01,437 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 41 [2020-10-14 05:20:02,222 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 31 [2020-10-14 05:20:02,673 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 37 [2020-10-14 05:20:03,171 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 37 [2020-10-14 05:20:03,952 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 31 [2020-10-14 05:20:03,957 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-14 05:20:03,957 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:20:03,957 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:20:03,957 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 05:20:03,958 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 05:20:03,958 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:20:03,958 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-10-14 05:20:03,958 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-14 05:20:03,958 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-10-14 05:20:03,958 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-10-14 05:20:03,959 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (let ((.cse6 (* 2 main_~l~0))) (let ((.cse11 (+ .cse6 2)) (.cse12 (* 2 main_~i~0)) (.cse13 (+ main_~j~0 (* 2 main_~n~0)))) (let ((.cse0 (<= (+ .cse12 main_~r~0 2) .cse13)) (.cse5 (<= main_~j~0 .cse6)) (.cse3 (<= .cse11 main_~r~0)) (.cse8 (<= main_~j~0 main_~r~0)) (.cse9 (<= 1 main_~l~0)) (.cse10 (<= (+ .cse12 main_~r~0 1) .cse13)) (.cse1 (<= 1 main_~i~0)) (.cse7 (<= (+ main_~j~0 1) main_~n~0)) (.cse2 (<= 2 main_~j~0)) (.cse4 (<= main_~r~0 main_~n~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= .cse6 main_~r~0) .cse0 .cse1 (<= (+ main_~r~0 1) (* 2 main_~j~0)) .cse7 .cse4 .cse5) (and (<= 2 main_~i~0) .cse8 .cse9 .cse10 .cse7 .cse2 .cse3 .cse4) (and .cse8 .cse9 .cse10 (<= main_~r~0 .cse11) .cse1 (<= main_~l~0 1) .cse7 .cse2 .cse4))))) [2020-10-14 05:20:03,959 INFO L264 CegarLoopResult]: At program point L27-2(lines 27 47) the Hoare annotation is: (let ((.cse18 (* 2 main_~l~0))) (let ((.cse16 (+ main_~r~0 1)) (.cse10 (+ .cse18 2)) (.cse20 (+ main_~j~0 (* 2 main_~n~0))) (.cse19 (* 2 main_~i~0))) (let ((.cse2 (<= 2 main_~i~0)) (.cse1 (<= (+ main_~j~0 1) (+ .cse19 main_~r~0))) (.cse7 (<= 1 main_~l~0)) (.cse3 (<= (+ .cse19 main_~r~0 1) .cse20)) (.cse0 (<= .cse18 main_~r~0)) (.cse15 (<= (+ .cse19 main_~r~0 2) .cse20)) (.cse11 (<= 1 main_~i~0)) (.cse8 (<= 2 main_~j~0)) (.cse9 (<= .cse10 main_~r~0)) (.cse17 (<= main_~j~0 .cse18)) (.cse12 (<= main_~l~0 1)) (.cse13 (<= (+ main_~l~0 1) main_~n~0)) (.cse4 (<= .cse16 (* 4 main_~l~0))) (.cse14 (<= 1 main_~r~0)) (.cse5 (<= main_~r~0 main_~n~0)) (.cse6 (<= .cse16 main_~j~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse2 .cse7 .cse3 .cse8 .cse9 .cse5) (and .cse1 .cse7 .cse3 (<= main_~r~0 .cse10) .cse11 .cse12 .cse13 .cse8 .cse14 .cse5) (and .cse0 .cse15 .cse11 (<= .cse16 (* 2 main_~j~0)) .cse5 .cse17) (and .cse15 .cse11 .cse8 .cse9 .cse5 .cse17) (and .cse12 .cse13 .cse4 .cse14 .cse5 .cse6))))) [2020-10-14 05:20:03,959 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 59) no Hoare annotation was computed. [2020-10-14 05:20:03,960 INFO L268 CegarLoopResult]: For program point L27-3(lines 24 57) no Hoare annotation was computed. [2020-10-14 05:20:03,960 INFO L268 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2020-10-14 05:20:03,960 INFO L268 CegarLoopResult]: For program point L48-1(lines 13 59) no Hoare annotation was computed. [2020-10-14 05:20:03,960 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-10-14 05:20:03,960 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (let ((.cse12 (* 2 main_~l~0)) (.cse14 (* 2 main_~i~0)) (.cse15 (+ main_~j~0 (* 2 main_~n~0)))) (let ((.cse8 (<= (+ .cse14 main_~r~0 1) .cse15)) (.cse10 (<= (+ main_~j~0 1) main_~n~0)) (.cse6 (<= (+ .cse12 2) main_~r~0)) (.cse0 (<= (+ .cse14 main_~r~0 2) .cse15)) (.cse1 (<= 1 main_~l~0)) (.cse2 (<= 1 main_~i~0)) (.cse9 (<= main_~l~0 1)) (.cse3 (<= main_~j~0 main_~n~0)) (.cse4 (<= (+ main_~i~0 1) main_~n~0)) (.cse5 (<= 2 main_~j~0)) (.cse11 (<= 1 main_~r~0)) (.cse7 (<= main_~r~0 main_~n~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse8 .cse2 .cse9 .cse10 .cse4 .cse5 .cse11 .cse7) (and .cse1 .cse8 .cse2 .cse10 .cse4 .cse5 .cse6 .cse7) (let ((.cse13 (+ main_~r~0 1))) (and (<= .cse12 main_~r~0) .cse0 .cse2 (<= .cse13 (* 2 main_~j~0)) .cse3 .cse4 (<= .cse13 (* 4 main_~l~0)) .cse7)) (and .cse0 .cse1 .cse2 .cse9 .cse3 .cse4 .cse5 .cse11 .cse7)))) [2020-10-14 05:20:03,961 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-14 05:20:03,961 INFO L268 CegarLoopResult]: For program point L28(lines 28 35) no Hoare annotation was computed. [2020-10-14 05:20:03,961 INFO L264 CegarLoopResult]: At program point L28-1(lines 28 35) the Hoare annotation is: (let ((.cse12 (* 2 main_~l~0)) (.cse14 (* 2 main_~i~0)) (.cse15 (+ main_~j~0 (* 2 main_~n~0)))) (let ((.cse8 (<= (+ .cse14 main_~r~0 1) .cse15)) (.cse10 (<= (+ main_~j~0 1) main_~n~0)) (.cse6 (<= (+ .cse12 2) main_~r~0)) (.cse0 (<= (+ .cse14 main_~r~0 2) .cse15)) (.cse1 (<= 1 main_~l~0)) (.cse2 (<= 1 main_~i~0)) (.cse9 (<= main_~l~0 1)) (.cse3 (<= main_~j~0 main_~n~0)) (.cse4 (<= (+ main_~i~0 1) main_~n~0)) (.cse5 (<= 2 main_~j~0)) (.cse11 (<= 1 main_~r~0)) (.cse7 (<= main_~r~0 main_~n~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse8 .cse2 .cse9 .cse10 .cse4 .cse5 .cse11 .cse7) (and .cse1 .cse8 .cse2 .cse10 .cse4 .cse5 .cse6 .cse7) (let ((.cse13 (+ main_~r~0 1))) (and (<= .cse12 main_~r~0) .cse0 .cse2 (<= .cse13 (* 2 main_~j~0)) .cse3 .cse4 (<= .cse13 (* 4 main_~l~0)) .cse7)) (and .cse0 .cse1 .cse2 .cse9 .cse3 .cse4 .cse5 .cse11 .cse7)))) [2020-10-14 05:20:03,961 INFO L268 CegarLoopResult]: For program point L24-1(lines 24 57) no Hoare annotation was computed. [2020-10-14 05:20:03,961 INFO L264 CegarLoopResult]: At program point L53(line 53) the Hoare annotation is: (let ((.cse0 (<= main_~l~0 1)) (.cse1 (<= (* 2 main_~l~0) main_~n~0)) (.cse2 (<= 2 main_~j~0)) (.cse3 (<= 1 main_~r~0)) (.cse4 (<= main_~r~0 main_~n~0))) (or (and .cse0 .cse1 (<= (+ main_~r~0 1) (* 4 main_~l~0)) .cse2 .cse3 .cse4) (and (<= 1 main_~l~0) (<= (+ (* 2 main_~i~0) main_~r~0 1) (+ main_~j~0 (* 2 main_~n~0))) .cse0 .cse1 .cse2 .cse3 .cse4))) [2020-10-14 05:20:03,961 INFO L264 CegarLoopResult]: At program point L53-1(line 53) the Hoare annotation is: (let ((.cse0 (<= main_~l~0 1)) (.cse1 (<= (* 2 main_~l~0) main_~n~0)) (.cse2 (<= 2 main_~j~0)) (.cse3 (<= 1 main_~r~0)) (.cse4 (<= main_~r~0 main_~n~0))) (or (and .cse0 .cse1 (<= (+ main_~r~0 1) (* 4 main_~l~0)) .cse2 .cse3 .cse4) (and (<= 1 main_~l~0) (<= (+ (* 2 main_~i~0) main_~r~0 1) (+ main_~j~0 (* 2 main_~n~0))) .cse0 .cse1 .cse2 .cse3 .cse4))) [2020-10-14 05:20:03,961 INFO L264 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: (and (<= (* 2 main_~l~0) main_~r~0) (<= (+ (* 2 main_~i~0) main_~r~0 1) (+ main_~j~0 (* 2 main_~n~0))) (<= 2 main_~j~0) (<= 2 main_~l~0) (<= main_~r~0 main_~n~0)) [2020-10-14 05:20:03,961 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-14 05:20:03,962 INFO L264 CegarLoopResult]: At program point L49-1(line 49) the Hoare annotation is: (and (<= (* 2 main_~l~0) main_~r~0) (<= (+ (* 2 main_~i~0) main_~r~0 1) (+ main_~j~0 (* 2 main_~n~0))) (<= 2 main_~j~0) (<= 2 main_~l~0) (<= main_~r~0 main_~n~0)) [2020-10-14 05:20:03,962 INFO L264 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (let ((.cse12 (* 2 main_~l~0)) (.cse14 (* 2 main_~i~0)) (.cse15 (+ main_~j~0 (* 2 main_~n~0)))) (let ((.cse8 (<= (+ .cse14 main_~r~0 1) .cse15)) (.cse10 (<= (+ main_~j~0 1) main_~n~0)) (.cse6 (<= (+ .cse12 2) main_~r~0)) (.cse0 (<= (+ .cse14 main_~r~0 2) .cse15)) (.cse1 (<= 1 main_~l~0)) (.cse2 (<= 1 main_~i~0)) (.cse9 (<= main_~l~0 1)) (.cse3 (<= main_~j~0 main_~n~0)) (.cse4 (<= (+ main_~i~0 1) main_~n~0)) (.cse5 (<= 2 main_~j~0)) (.cse11 (<= 1 main_~r~0)) (.cse7 (<= main_~r~0 main_~n~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse8 .cse2 .cse9 .cse10 .cse4 .cse5 .cse11 .cse7) (and .cse1 .cse8 .cse2 .cse10 .cse4 .cse5 .cse6 .cse7) (let ((.cse13 (+ main_~r~0 1))) (and (<= .cse12 main_~r~0) .cse0 .cse2 (<= .cse13 (* 2 main_~j~0)) .cse3 .cse4 (<= .cse13 (* 4 main_~l~0)) .cse7)) (and .cse0 .cse1 .cse2 .cse9 .cse3 .cse4 .cse5 .cse11 .cse7)))) [2020-10-14 05:20:03,962 INFO L264 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (let ((.cse10 (* 2 main_~l~0)) (.cse8 (* 2 main_~i~0)) (.cse9 (+ main_~j~0 (* 2 main_~n~0)))) (let ((.cse1 (<= (+ .cse8 main_~r~0 1) .cse9)) (.cse5 (<= 2 main_~j~0)) (.cse2 (+ .cse10 2)) (.cse0 (<= 1 main_~l~0)) (.cse7 (<= 1 main_~i~0)) (.cse3 (<= main_~j~0 main_~n~0)) (.cse4 (<= (+ main_~i~0 1) main_~n~0)) (.cse6 (<= main_~r~0 main_~n~0))) (or (and .cse0 .cse1 (<= main_~r~0 .cse2) (<= main_~l~0 1) .cse3 .cse4 .cse5 (<= 1 main_~r~0) .cse6) (and .cse0 .cse1 .cse7 (<= (+ main_~j~0 1) main_~n~0) .cse4 .cse5 (<= .cse2 main_~r~0) .cse6) (and (<= (+ .cse8 main_~r~0 2) .cse9) (<= .cse10 main_~r~0) .cse0 .cse7 (<= (+ main_~r~0 1) (* 2 main_~j~0)) .cse3 .cse4 .cse6)))) [2020-10-14 05:20:03,962 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-14 05:20:03,962 INFO L268 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-10-14 05:20:03,962 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (let ((.cse6 (* 2 main_~l~0))) (let ((.cse11 (+ .cse6 2)) (.cse12 (* 2 main_~i~0)) (.cse13 (+ main_~j~0 (* 2 main_~n~0)))) (let ((.cse0 (<= (+ .cse12 main_~r~0 2) .cse13)) (.cse5 (<= main_~j~0 .cse6)) (.cse3 (<= .cse11 main_~r~0)) (.cse8 (<= main_~j~0 main_~r~0)) (.cse9 (<= 1 main_~l~0)) (.cse10 (<= (+ .cse12 main_~r~0 1) .cse13)) (.cse1 (<= 1 main_~i~0)) (.cse7 (<= (+ main_~j~0 1) main_~n~0)) (.cse2 (<= 2 main_~j~0)) (.cse4 (<= main_~r~0 main_~n~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= .cse6 main_~r~0) .cse0 .cse1 (<= (+ main_~r~0 1) (* 2 main_~j~0)) .cse7 .cse4 .cse5) (and (<= 2 main_~i~0) .cse8 .cse9 .cse10 .cse7 .cse2 .cse3 .cse4) (and .cse8 .cse9 .cse10 (<= main_~r~0 .cse11) .cse1 (<= main_~l~0 1) .cse7 .cse2 .cse4))))) [2020-10-14 05:20:03,962 INFO L264 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (let ((.cse6 (* 2 main_~l~0))) (let ((.cse11 (+ .cse6 2)) (.cse12 (* 2 main_~i~0)) (.cse13 (+ main_~j~0 (* 2 main_~n~0)))) (let ((.cse0 (<= (+ .cse12 main_~r~0 2) .cse13)) (.cse5 (<= main_~j~0 .cse6)) (.cse3 (<= .cse11 main_~r~0)) (.cse8 (<= main_~j~0 main_~r~0)) (.cse9 (<= 1 main_~l~0)) (.cse10 (<= (+ .cse12 main_~r~0 1) .cse13)) (.cse1 (<= 1 main_~i~0)) (.cse7 (<= (+ main_~j~0 1) main_~n~0)) (.cse2 (<= 2 main_~j~0)) (.cse4 (<= main_~r~0 main_~n~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= .cse6 main_~r~0) .cse0 .cse1 (<= (+ main_~r~0 1) (* 2 main_~j~0)) .cse7 .cse4 .cse5) (and (<= 2 main_~i~0) .cse8 .cse9 .cse10 .cse7 .cse2 .cse3 .cse4) (and .cse8 .cse9 .cse10 (<= main_~r~0 .cse11) .cse1 (<= main_~l~0 1) .cse7 .cse2 .cse4))))) [2020-10-14 05:20:03,963 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-14 05:20:03,963 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-10-14 05:20:03,963 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 59) no Hoare annotation was computed. [2020-10-14 05:20:03,963 INFO L264 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: (let ((.cse2 (+ main_~r~0 1))) (let ((.cse5 (<= .cse2 (* 4 main_~l~0))) (.cse1 (<= (+ (* 2 main_~i~0) main_~r~0 1) (+ main_~j~0 (* 2 main_~n~0)))) (.cse3 (<= main_~j~0 main_~n~0)) (.cse4 (<= (+ main_~i~0 1) main_~n~0)) (.cse7 (<= 2 main_~j~0)) (.cse6 (<= main_~r~0 main_~n~0)) (.cse0 (* 2 main_~l~0))) (or (and (<= .cse0 main_~r~0) .cse1 (<= 1 main_~i~0) (<= .cse2 (* 2 main_~j~0)) .cse3 .cse4 .cse5 .cse6) (and .cse3 (<= main_~l~0 1) .cse5 .cse7 (<= 1 main_~r~0) .cse6) (and (<= 1 main_~l~0) .cse1 .cse3 .cse4 .cse7 .cse6 (<= (+ .cse0 2) main_~r~0))))) [2020-10-14 05:20:03,963 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-10-14 05:20:03,963 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (let ((.cse6 (* 2 main_~l~0))) (let ((.cse11 (+ .cse6 2)) (.cse12 (* 2 main_~i~0)) (.cse13 (+ main_~j~0 (* 2 main_~n~0)))) (let ((.cse0 (<= (+ .cse12 main_~r~0 2) .cse13)) (.cse5 (<= main_~j~0 .cse6)) (.cse3 (<= .cse11 main_~r~0)) (.cse8 (<= main_~j~0 main_~r~0)) (.cse9 (<= 1 main_~l~0)) (.cse10 (<= (+ .cse12 main_~r~0 1) .cse13)) (.cse1 (<= 1 main_~i~0)) (.cse7 (<= (+ main_~j~0 1) main_~n~0)) (.cse2 (<= 2 main_~j~0)) (.cse4 (<= main_~r~0 main_~n~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= .cse6 main_~r~0) .cse0 .cse1 (<= (+ main_~r~0 1) (* 2 main_~j~0)) .cse7 .cse4 .cse5) (and (<= 2 main_~i~0) .cse8 .cse9 .cse10 .cse7 .cse2 .cse3 .cse4) (and .cse8 .cse9 .cse10 (<= main_~r~0 .cse11) .cse1 (<= main_~l~0 1) .cse7 .cse2 .cse4))))) [2020-10-14 05:20:03,963 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 59) the Hoare annotation is: true [2020-10-14 05:20:03,964 INFO L264 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (let ((.cse2 (+ main_~r~0 1))) (let ((.cse5 (<= .cse2 (* 4 main_~l~0))) (.cse1 (<= (+ (* 2 main_~i~0) main_~r~0 1) (+ main_~j~0 (* 2 main_~n~0)))) (.cse3 (<= main_~j~0 main_~n~0)) (.cse4 (<= (+ main_~i~0 1) main_~n~0)) (.cse7 (<= 2 main_~j~0)) (.cse6 (<= main_~r~0 main_~n~0)) (.cse0 (* 2 main_~l~0))) (or (and (<= .cse0 main_~r~0) .cse1 (<= 1 main_~i~0) (<= .cse2 (* 2 main_~j~0)) .cse3 .cse4 .cse5 .cse6) (and .cse3 (<= main_~l~0 1) .cse5 .cse7 (<= 1 main_~r~0) .cse6) (and (<= 1 main_~l~0) .cse1 .cse3 .cse4 .cse7 .cse6 (<= (+ .cse0 2) main_~r~0))))) [2020-10-14 05:20:03,964 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-10-14 05:20:03,964 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-10-14 05:20:03,964 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-14 05:20:03,964 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-14 05:20:03,964 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-10-14 05:20:03,964 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-10-14 05:20:03,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:20:03 BoogieIcfgContainer [2020-10-14 05:20:03,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 05:20:03,988 INFO L168 Benchmark]: Toolchain (without parser) took 57743.72 ms. Allocated memory was 148.4 MB in the beginning and 776.5 MB in the end (delta: 628.1 MB). Free memory was 104.2 MB in the beginning and 366.2 MB in the end (delta: -262.0 MB). Peak memory consumption was 645.3 MB. Max. memory is 7.1 GB. [2020-10-14 05:20:03,989 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 05:20:03,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.21 ms. Allocated memory is still 148.4 MB. Free memory was 104.2 MB in the beginning and 94.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-10-14 05:20:03,990 INFO L168 Benchmark]: Boogie Preprocessor took 115.92 ms. Allocated memory was 148.4 MB in the beginning and 203.9 MB in the end (delta: 55.6 MB). Free memory was 94.1 MB in the beginning and 182.4 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-14 05:20:03,990 INFO L168 Benchmark]: RCFGBuilder took 329.01 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 165.0 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2020-10-14 05:20:03,991 INFO L168 Benchmark]: TraceAbstraction took 57008.17 ms. Allocated memory was 203.9 MB in the beginning and 776.5 MB in the end (delta: 572.5 MB). Free memory was 164.1 MB in the beginning and 366.2 MB in the end (delta: -202.1 MB). Peak memory consumption was 649.6 MB. Max. memory is 7.1 GB. [2020-10-14 05:20:03,993 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 285.21 ms. Allocated memory is still 148.4 MB. Free memory was 104.2 MB in the beginning and 94.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.92 ms. Allocated memory was 148.4 MB in the beginning and 203.9 MB in the end (delta: 55.6 MB). Free memory was 94.1 MB in the beginning and 182.4 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 329.01 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 165.0 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 57008.17 ms. Allocated memory was 203.9 MB in the beginning and 776.5 MB in the end (delta: 572.5 MB). Free memory was 164.1 MB in the beginning and 366.2 MB in the end (delta: -202.1 MB). Peak memory consumption was 649.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((2 * l <= r && j + 1 <= 2 * i + r) && 2 <= i) && 2 * i + r + 1 <= j + 2 * n) && r + 1 <= 4 * l) && r <= n) && r + 1 <= j) || ((((((j + 1 <= 2 * i + r && 2 <= i) && 1 <= l) && 2 * i + r + 1 <= j + 2 * n) && 2 <= j) && 2 * l + 2 <= r) && r <= n)) || (((((((((j + 1 <= 2 * i + r && 1 <= l) && 2 * i + r + 1 <= j + 2 * n) && r <= 2 * l + 2) && 1 <= i) && l <= 1) && l + 1 <= n) && 2 <= j) && 1 <= r) && r <= n)) || (((((2 * l <= r && 2 * i + r + 2 <= j + 2 * n) && 1 <= i) && r + 1 <= 2 * j) && r <= n) && j <= 2 * l)) || (((((2 * i + r + 2 <= j + 2 * n && 1 <= i) && 2 <= j) && 2 * l + 2 <= r) && r <= n) && j <= 2 * l)) || (((((l <= 1 && l + 1 <= n) && r + 1 <= 4 * l) && 1 <= r) && r <= n) && r + 1 <= j) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 46.0s, OverallIterations: 23, TraceHistogramMax: 25, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1533 SDtfs, 884 SDslu, 3954 SDs, 0 SdLazy, 2932 SolverSat, 1115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 536 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=413occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 23 MinimizatonAttempts, 881 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 940 PreInvPairs, 1241 NumberOfFragments, 2018 HoareAnnotationTreeSize, 940 FomulaSimplifications, 161767671 FormulaSimplificationTreeSizeReduction, 2.9s HoareSimplificationTime, 20 FomulaSimplificationsInter, 50648004 FormulaSimplificationTreeSizeReductionInter, 7.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 37.4s InterpolantComputationTime, 1157 NumberOfCodeBlocks, 1157 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1134 ConstructedInterpolants, 0 QuantifiedInterpolants, 200044 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 16 PerfectInterpolantSequences, 4163/4249 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...