/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-tiling/nr5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 18:27:31,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 18:27:31,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 18:27:31,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 18:27:31,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 18:27:31,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 18:27:31,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 18:27:31,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 18:27:31,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 18:27:31,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 18:27:31,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 18:27:31,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 18:27:31,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 18:27:31,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 18:27:31,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 18:27:31,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 18:27:31,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 18:27:31,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 18:27:31,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 18:27:31,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 18:27:31,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 18:27:31,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 18:27:31,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 18:27:31,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 18:27:31,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 18:27:31,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 18:27:31,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 18:27:31,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 18:27:31,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 18:27:31,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 18:27:31,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 18:27:31,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 18:27:31,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 18:27:31,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 18:27:31,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 18:27:31,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 18:27:31,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 18:27:31,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 18:27:31,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 18:27:31,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 18:27:31,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 18:27:31,511 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 18:27:31,561 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 18:27:31,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 18:27:31,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 18:27:31,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 18:27:31,565 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 18:27:31,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 18:27:31,566 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 18:27:31,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 18:27:31,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 18:27:31,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 18:27:31,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 18:27:31,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 18:27:31,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 18:27:31,568 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 18:27:31,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 18:27:31,568 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 18:27:31,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 18:27:31,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 18:27:31,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 18:27:31,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 18:27:31,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 18:27:31,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:27:31,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 18:27:31,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 18:27:31,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 18:27:31,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 18:27:31,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 18:27:31,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 18:27:31,572 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 18:27:31,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 18:27:31,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 18:27:31,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 18:27:31,892 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 18:27:31,894 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 18:27:31,895 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 18:27:31,895 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/nr5.c [2020-10-14 18:27:31,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cab40a458/5414dba66b154f8d879bd87a00a447fc/FLAG0375897c4 [2020-10-14 18:27:32,440 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 18:27:32,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/nr5.c [2020-10-14 18:27:32,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cab40a458/5414dba66b154f8d879bd87a00a447fc/FLAG0375897c4 [2020-10-14 18:27:32,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cab40a458/5414dba66b154f8d879bd87a00a447fc [2020-10-14 18:27:32,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 18:27:32,852 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 18:27:32,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 18:27:32,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 18:27:32,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 18:27:32,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:27:32" (1/1) ... [2020-10-14 18:27:32,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7730d90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:27:32, skipping insertion in model container [2020-10-14 18:27:32,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:27:32" (1/1) ... [2020-10-14 18:27:32,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 18:27:32,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 18:27:33,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:27:33,097 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 18:27:33,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:27:33,143 INFO L208 MainTranslator]: Completed translation [2020-10-14 18:27:33,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:27:33 WrapperNode [2020-10-14 18:27:33,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 18:27:33,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 18:27:33,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 18:27:33,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 18:27:33,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:27:33" (1/1) ... [2020-10-14 18:27:33,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:27:33" (1/1) ... [2020-10-14 18:27:33,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:27:33" (1/1) ... [2020-10-14 18:27:33,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:27:33" (1/1) ... [2020-10-14 18:27:33,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:27:33" (1/1) ... [2020-10-14 18:27:33,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:27:33" (1/1) ... [2020-10-14 18:27:33,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:27:33" (1/1) ... [2020-10-14 18:27:33,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 18:27:33,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 18:27:33,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 18:27:33,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 18:27:33,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:27:33" (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 18:27:33,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 18:27:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 18:27:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 18:27:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 18:27:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 18:27:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 18:27:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 18:27:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 18:27:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 18:27:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 18:27:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 18:27:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 18:27:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 18:27:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 18:27:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 18:27:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 18:27:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 18:27:33,628 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 18:27:33,629 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 18:27:33,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:27:33 BoogieIcfgContainer [2020-10-14 18:27:33,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 18:27:33,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 18:27:33,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 18:27:33,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 18:27:33,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:27:32" (1/3) ... [2020-10-14 18:27:33,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1311e2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:27:33, skipping insertion in model container [2020-10-14 18:27:33,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:27:33" (2/3) ... [2020-10-14 18:27:33,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1311e2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:27:33, skipping insertion in model container [2020-10-14 18:27:33,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:27:33" (3/3) ... [2020-10-14 18:27:33,644 INFO L109 eAbstractionObserver]: Analyzing ICFG nr5.c [2020-10-14 18:27:33,657 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 18:27:33,664 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 18:27:33,682 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 18:27:33,742 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 18:27:33,743 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 18:27:33,743 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 18:27:33,743 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 18:27:33,745 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 18:27:33,745 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 18:27:33,746 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 18:27:33,746 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 18:27:33,774 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-14 18:27:33,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 18:27:33,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:27:33,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:27:33,784 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:27:33,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:27:33,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1740462776, now seen corresponding path program 1 times [2020-10-14 18:27:33,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:27:33,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863916673] [2020-10-14 18:27:33,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:27:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:34,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:34,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:34,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:34,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:34,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 18:27:34,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:27:34,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-10-14 18:27:34,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:34,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 18:27:34,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 18:27:34,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:27:34,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 18:27:34,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:27:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:34,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:34,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:34,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:27:34,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:34,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:27:34,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:34,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:27:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:27:34,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:34,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:27:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:34,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:34,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:34,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:34,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:34,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:27:34,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 18:27:34,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:34,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:34,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:27:34,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:34,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:27:34,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:34,559 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 18:27:34,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863916673] [2020-10-14 18:27:34,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:27:34,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 18:27:34,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129227176] [2020-10-14 18:27:34,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 18:27:34,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:27:34,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 18:27:34,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 18:27:34,590 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 6 states. [2020-10-14 18:27:34,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:27:34,831 INFO L93 Difference]: Finished difference Result 69 states and 91 transitions. [2020-10-14 18:27:34,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 18:27:34,833 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-14 18:27:34,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:27:34,843 INFO L225 Difference]: With dead ends: 69 [2020-10-14 18:27:34,843 INFO L226 Difference]: Without dead ends: 37 [2020-10-14 18:27:34,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 18:27:34,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-14 18:27:34,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2020-10-14 18:27:34,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-14 18:27:34,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-10-14 18:27:34,891 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 22 [2020-10-14 18:27:34,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:27:34,891 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-10-14 18:27:34,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 18:27:34,892 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-10-14 18:27:34,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 18:27:34,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:27:34,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:27:34,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 18:27:34,894 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:27:34,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:27:34,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1384584959, now seen corresponding path program 1 times [2020-10-14 18:27:34,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:27:34,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169274026] [2020-10-14 18:27:34,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:27:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:34,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:34,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:35,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:35,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:35,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:35,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 18:27:35,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 18:27:35,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 857 [2020-10-14 18:27:35,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:35,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:35,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 18:27:35,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:27:35,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 18:27:35,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:35,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:27:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:35,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:35,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:35,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:27:35,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:35,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:27:35,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:35,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:35,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:27:35,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:35,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:27:35,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:35,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:27:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:35,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:35,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:35,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:35,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:35,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 18:27:35,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:35,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:35,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:27:35,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:35,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:27:35,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:35,969 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 18:27:35,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169274026] [2020-10-14 18:27:35,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:27:35,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 18:27:35,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523162814] [2020-10-14 18:27:35,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 18:27:35,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:27:35,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 18:27:35,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 18:27:35,974 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 6 states. [2020-10-14 18:27:36,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:27:36,138 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2020-10-14 18:27:36,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 18:27:36,139 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-14 18:27:36,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:27:36,144 INFO L225 Difference]: With dead ends: 60 [2020-10-14 18:27:36,144 INFO L226 Difference]: Without dead ends: 43 [2020-10-14 18:27:36,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 18:27:36,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-14 18:27:36,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2020-10-14 18:27:36,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-14 18:27:36,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-10-14 18:27:36,160 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 22 [2020-10-14 18:27:36,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:27:36,160 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-10-14 18:27:36,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 18:27:36,161 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-10-14 18:27:36,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 18:27:36,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:27:36,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:27:36,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 18:27:36,163 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:27:36,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:27:36,163 INFO L82 PathProgramCache]: Analyzing trace with hash -112997622, now seen corresponding path program 1 times [2020-10-14 18:27:36,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:27:36,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647844429] [2020-10-14 18:27:36,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:27:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:36,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:36,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:36,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 18:27:36,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:36,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 18:27:36,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:36,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:27:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 18:27:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 18:27:36,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:36,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:27:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:36,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:36,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:36,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:27:36,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:36,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:27:36,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:36,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:27:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:27:36,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:36,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:27:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:36,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:36,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:36,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:36,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:36,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:27:36,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:36,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:27:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:27:36,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:36,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:27:36,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647844429] [2020-10-14 18:27:36,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:27:36,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 18:27:36,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446332279] [2020-10-14 18:27:36,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 18:27:36,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:27:36,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 18:27:36,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 18:27:36,300 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 4 states. [2020-10-14 18:27:36,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:27:36,424 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2020-10-14 18:27:36,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 18:27:36,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-14 18:27:36,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:27:36,427 INFO L225 Difference]: With dead ends: 62 [2020-10-14 18:27:36,427 INFO L226 Difference]: Without dead ends: 40 [2020-10-14 18:27:36,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 18:27:36,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-14 18:27:36,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2020-10-14 18:27:36,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-14 18:27:36,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-10-14 18:27:36,451 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2020-10-14 18:27:36,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:27:36,451 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-10-14 18:27:36,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 18:27:36,459 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-10-14 18:27:36,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 18:27:36,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:27:36,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:27:36,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 18:27:36,464 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:27:36,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:27:36,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1279331720, now seen corresponding path program 1 times [2020-10-14 18:27:36,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:27:36,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190024886] [2020-10-14 18:27:36,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:27:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:36,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:36,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:36,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:36,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:36,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 18:27:36,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:27:36,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-10-14 18:27:36,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:36,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:36,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 18:27:36,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:27:36,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 18:27:36,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:37,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:27:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:37,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:37,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:37,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:27:37,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:37,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:27:37,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:37,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:37,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:27:37,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:37,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:27:37,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:37,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:27:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:37,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:37,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:37,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:37,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:37,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:27:37,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:37,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:37,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:27:37,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:37,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:27:37,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:37,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:27:37,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190024886] [2020-10-14 18:27:37,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:27:37,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 18:27:37,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837508181] [2020-10-14 18:27:37,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 18:27:37,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:27:37,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 18:27:37,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 18:27:37,029 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 6 states. [2020-10-14 18:27:37,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:27:37,146 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2020-10-14 18:27:37,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 18:27:37,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-14 18:27:37,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:27:37,148 INFO L225 Difference]: With dead ends: 64 [2020-10-14 18:27:37,148 INFO L226 Difference]: Without dead ends: 41 [2020-10-14 18:27:37,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 18:27:37,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-14 18:27:37,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-14 18:27:37,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-14 18:27:37,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-10-14 18:27:37,157 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 28 [2020-10-14 18:27:37,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:27:37,158 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-10-14 18:27:37,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 18:27:37,158 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-10-14 18:27:37,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 18:27:37,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:27:37,159 INFO L422 BasicCegarLoop]: trace histogram [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 18:27:37,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 18:27:37,160 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:27:37,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:27:37,160 INFO L82 PathProgramCache]: Analyzing trace with hash -994855160, now seen corresponding path program 1 times [2020-10-14 18:27:37,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:27:37,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621930418] [2020-10-14 18:27:37,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:27:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:37,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:37,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:37,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:37,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:37,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 18:27:37,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:27:37,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 559 [2020-10-14 18:27:37,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:37,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:37,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 18:27:37,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:27:37,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 18:27:37,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:37,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:27:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:37,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:37,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:37,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:27:37,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:37,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:27:37,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:37,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:37,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:27:37,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:27:37,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:37,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:27:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:37,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:37,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:37,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:37,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:37,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:27:37,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:37,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:27:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:27:37,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:37,795 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:27:37,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621930418] [2020-10-14 18:27:37,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:27:37,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 18:27:37,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127879847] [2020-10-14 18:27:37,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 18:27:37,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:27:37,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 18:27:37,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 18:27:37,798 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 6 states. [2020-10-14 18:27:37,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:27:37,937 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2020-10-14 18:27:37,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 18:27:37,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-14 18:27:37,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:27:37,939 INFO L225 Difference]: With dead ends: 71 [2020-10-14 18:27:37,940 INFO L226 Difference]: Without dead ends: 45 [2020-10-14 18:27:37,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 18:27:37,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-14 18:27:37,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2020-10-14 18:27:37,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-14 18:27:37,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-10-14 18:27:37,949 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 31 [2020-10-14 18:27:37,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:27:37,950 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-10-14 18:27:37,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 18:27:37,950 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-10-14 18:27:37,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-14 18:27:37,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:27:37,951 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:27:37,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 18:27:37,952 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:27:37,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:27:37,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1155732470, now seen corresponding path program 2 times [2020-10-14 18:27:37,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:27:37,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006541597] [2020-10-14 18:27:37,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:27:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:37,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:38,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:38,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:38,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:38,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 18:27:38,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:27:38,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 921 [2020-10-14 18:27:38,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:38,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:38,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 18:27:38,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:27:38,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 18:27:38,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:27:38,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:27:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:38,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:38,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:38,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:27:38,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:38,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:27:38,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:38,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:38,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:27:38,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:38,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:27:38,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:38,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:27:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:38,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:38,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:38,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:38,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:38,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 18:27:38,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:38,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:38,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:27:38,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:38,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:27:38,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:38,997 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:27:38,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006541597] [2020-10-14 18:27:38,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:27:38,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 18:27:39,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271652646] [2020-10-14 18:27:39,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 18:27:39,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:27:39,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 18:27:39,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 18:27:39,002 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 7 states. [2020-10-14 18:27:39,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:27:39,240 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2020-10-14 18:27:39,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 18:27:39,243 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-10-14 18:27:39,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:27:39,244 INFO L225 Difference]: With dead ends: 77 [2020-10-14 18:27:39,245 INFO L226 Difference]: Without dead ends: 48 [2020-10-14 18:27:39,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 18:27:39,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-14 18:27:39,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2020-10-14 18:27:39,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-14 18:27:39,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-10-14 18:27:39,260 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 34 [2020-10-14 18:27:39,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:27:39,262 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-10-14 18:27:39,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 18:27:39,263 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-10-14 18:27:39,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-14 18:27:39,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:27:39,267 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 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 18:27:39,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 18:27:39,268 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:27:39,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:27:39,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1284663368, now seen corresponding path program 3 times [2020-10-14 18:27:39,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:27:39,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029827535] [2020-10-14 18:27:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:27:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:39,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:39,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:39,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:41,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:41,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 18:27:41,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:27:41,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1841 [2020-10-14 18:27:41,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:41,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:41,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 18:27:41,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:27:41,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 18:27:41,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:41,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:27:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:41,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:41,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:41,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:27:41,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:41,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:27:41,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:41,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:41,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:27:41,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:41,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:27:41,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:41,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:27:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:41,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:41,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:41,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:41,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:41,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 18:27:41,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:41,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:41,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:27:41,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:41,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:27:41,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:27:41,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029827535] [2020-10-14 18:27:41,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:27:41,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 18:27:41,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901839627] [2020-10-14 18:27:41,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 18:27:41,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:27:41,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 18:27:41,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 18:27:41,222 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 8 states. [2020-10-14 18:27:41,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:27:41,395 INFO L93 Difference]: Finished difference Result 82 states and 91 transitions. [2020-10-14 18:27:41,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 18:27:41,396 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2020-10-14 18:27:41,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:27:41,397 INFO L225 Difference]: With dead ends: 82 [2020-10-14 18:27:41,397 INFO L226 Difference]: Without dead ends: 50 [2020-10-14 18:27:41,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-14 18:27:41,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-14 18:27:41,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-14 18:27:41,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-14 18:27:41,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-10-14 18:27:41,412 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 37 [2020-10-14 18:27:41,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:27:41,412 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-10-14 18:27:41,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 18:27:41,412 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-10-14 18:27:41,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 18:27:41,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:27:41,415 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 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 18:27:41,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 18:27:41,416 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:27:41,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:27:41,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1730684234, now seen corresponding path program 4 times [2020-10-14 18:27:41,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:27:41,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166768721] [2020-10-14 18:27:41,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:27:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:41,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:41,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:41,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:42,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:42,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 18:27:42,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:27:42,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 827 [2020-10-14 18:27:42,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:42,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:42,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 18:27:42,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:27:42,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 18:27:42,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:42,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:27:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:42,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:42,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:42,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:27:42,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:42,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:27:42,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:42,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:27:42,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:42,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:27:42,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:42,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:27:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:42,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:42,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:42,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:42,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:42,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 18:27:42,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:42,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:42,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:27:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:27:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:42,988 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:27:42,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166768721] [2020-10-14 18:27:42,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:27:42,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 18:27:42,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152542976] [2020-10-14 18:27:42,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 18:27:42,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:27:42,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 18:27:42,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-14 18:27:42,991 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 14 states. [2020-10-14 18:27:43,253 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 41 [2020-10-14 18:27:43,476 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2020-10-14 18:27:44,696 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-10-14 18:27:45,013 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-10-14 18:27:45,171 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-10-14 18:27:45,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:27:45,449 INFO L93 Difference]: Finished difference Result 111 states and 129 transitions. [2020-10-14 18:27:45,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 18:27:45,450 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 40 [2020-10-14 18:27:45,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:27:45,451 INFO L225 Difference]: With dead ends: 111 [2020-10-14 18:27:45,451 INFO L226 Difference]: Without dead ends: 95 [2020-10-14 18:27:45,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=243, Invalid=749, Unknown=0, NotChecked=0, Total=992 [2020-10-14 18:27:45,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-14 18:27:45,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 52. [2020-10-14 18:27:45,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-14 18:27:45,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-10-14 18:27:45,472 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 40 [2020-10-14 18:27:45,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:27:45,473 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-10-14 18:27:45,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 18:27:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-10-14 18:27:45,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 18:27:45,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:27:45,475 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:27:45,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 18:27:45,476 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:27:45,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:27:45,476 INFO L82 PathProgramCache]: Analyzing trace with hash -139928889, now seen corresponding path program 1 times [2020-10-14 18:27:45,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:27:45,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413918633] [2020-10-14 18:27:45,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:27:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:45,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:45,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:45,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:46,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:46,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:47,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:47,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 18:27:47,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 18:27:47,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2201 [2020-10-14 18:27:47,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:47,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 18:27:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:27:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 18:27:47,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:47,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:27:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:47,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:47,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:47,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:27:47,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:47,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:27:47,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:47,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:27:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:27:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:47,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:27:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:47,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:47,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:47,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:47,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:47,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:27:47,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:47,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:47,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:27:47,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:47,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:27:47,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:47,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 18:27:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:47,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:47,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:47,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:47,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:27:47,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:47,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:27:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:27:47,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:48,009 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 35 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-14 18:27:48,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [413918633] [2020-10-14 18:27:48,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:27:48,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 18:27:48,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476689153] [2020-10-14 18:27:48,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 18:27:48,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:27:48,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 18:27:48,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-14 18:27:48,012 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 14 states. [2020-10-14 18:27:49,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:27:49,791 INFO L93 Difference]: Finished difference Result 111 states and 127 transitions. [2020-10-14 18:27:49,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-14 18:27:49,792 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 49 [2020-10-14 18:27:49,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:27:49,793 INFO L225 Difference]: With dead ends: 111 [2020-10-14 18:27:49,794 INFO L226 Difference]: Without dead ends: 95 [2020-10-14 18:27:49,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=339, Invalid=1301, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 18:27:49,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-14 18:27:49,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 57. [2020-10-14 18:27:49,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-14 18:27:49,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2020-10-14 18:27:49,815 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 49 [2020-10-14 18:27:49,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:27:49,815 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2020-10-14 18:27:49,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 18:27:49,816 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2020-10-14 18:27:49,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 18:27:49,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:27:49,818 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 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] [2020-10-14 18:27:49,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 18:27:49,818 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:27:49,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:27:49,819 INFO L82 PathProgramCache]: Analyzing trace with hash -321364522, now seen corresponding path program 2 times [2020-10-14 18:27:49,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:27:49,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702718886] [2020-10-14 18:27:49,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:27:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:49,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:49,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:49,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:50,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:50,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:52,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:52,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:52,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:53,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:53,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:54,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:54,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 18:27:54,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 18:27:54,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 18:27:54,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:54,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 18:27:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:27:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 18:27:54,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:55,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:27:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:55,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:55,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:55,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:27:55,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:55,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:27:55,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:55,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:55,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:27:55,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:55,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:27:55,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:27:55,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:27:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:55,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:55,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:55,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:55,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:55,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 18:27:55,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:55,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:27:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:27:55,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:27:55,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 18:27:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:55,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:55,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:55,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:55,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:55,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 18:27:55,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:55,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:55,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:27:55,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:55,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:27:55,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:27:55,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 18:27:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:55,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:55,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:27:55,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:27:55,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:27:55,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:27:55,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:27:55,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:27:55,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:27:55,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:27:55,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:27:55,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:27:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 18:27:55,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702718886] [2020-10-14 18:27:55,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:27:55,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 18:27:55,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073336191] [2020-10-14 18:27:55,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 18:27:55,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:27:55,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 18:27:55,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-14 18:27:55,135 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand 14 states. [2020-10-14 18:27:56,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:27:56,452 INFO L93 Difference]: Finished difference Result 124 states and 140 transitions. [2020-10-14 18:27:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 18:27:56,455 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 58 [2020-10-14 18:27:56,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:27:56,458 INFO L225 Difference]: With dead ends: 124 [2020-10-14 18:27:56,458 INFO L226 Difference]: Without dead ends: 108 [2020-10-14 18:27:56,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=225, Invalid=965, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 18:27:56,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-14 18:27:56,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 62. [2020-10-14 18:27:56,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-14 18:27:56,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2020-10-14 18:27:56,484 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 58 [2020-10-14 18:27:56,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:27:56,486 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2020-10-14 18:27:56,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 18:27:56,487 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2020-10-14 18:27:56,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 18:27:56,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:27:56,487 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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 18:27:56,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 18:27:56,488 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:27:56,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:27:56,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1102699431, now seen corresponding path program 3 times [2020-10-14 18:27:56,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:27:56,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024091773] [2020-10-14 18:27:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:27:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:27:56,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:56,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:56,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:56,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:56,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:57,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:27:59,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:00,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:00,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:00,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:00,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:00,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:01,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:01,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 18:28:01,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 18:28:01,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 18:28:01,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:01,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:01,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 18:28:01,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:28:01,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 18:28:01,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:01,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:28:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:01,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:01,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:01,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:28:01,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:01,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:01,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:01,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:01,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:01,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:28:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:01,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:01,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:01,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:01,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:01,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:28:01,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:01,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:01,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:01,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:01,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:01,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:01,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 18:28:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:01,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:01,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:01,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:01,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:28:01,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:01,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:01,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:01,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 18:28:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:01,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:01,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:01,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:01,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:01,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:01,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:01,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:01,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:01,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:01,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:01,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:01,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 18:28:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:01,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:01,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:01,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:01,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:01,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:01,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:01,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:01,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:01,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:01,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:01,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 9 proven. 42 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-14 18:28:01,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024091773] [2020-10-14 18:28:01,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:28:01,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 18:28:01,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554616299] [2020-10-14 18:28:01,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 18:28:01,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:28:01,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 18:28:01,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-10-14 18:28:01,788 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand 13 states. [2020-10-14 18:28:02,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:28:02,910 INFO L93 Difference]: Finished difference Result 145 states and 164 transitions. [2020-10-14 18:28:02,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 18:28:02,911 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 67 [2020-10-14 18:28:02,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:28:02,913 INFO L225 Difference]: With dead ends: 145 [2020-10-14 18:28:02,913 INFO L226 Difference]: Without dead ends: 129 [2020-10-14 18:28:02,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2020-10-14 18:28:02,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-14 18:28:02,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 67. [2020-10-14 18:28:02,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-14 18:28:02,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2020-10-14 18:28:02,930 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 67 [2020-10-14 18:28:02,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:28:02,930 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2020-10-14 18:28:02,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 18:28:02,931 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2020-10-14 18:28:02,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 18:28:02,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:28:02,931 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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 18:28:02,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 18:28:02,932 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:28:02,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:28:02,932 INFO L82 PathProgramCache]: Analyzing trace with hash 640309494, now seen corresponding path program 4 times [2020-10-14 18:28:02,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:28:02,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575731867] [2020-10-14 18:28:02,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:28:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:02,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:03,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:03,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:03,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:03,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:03,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:03,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:03,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:04,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:04,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:04,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:04,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:07,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:07,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 18:28:07,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 18:28:07,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 18:28:07,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:07,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:07,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 18:28:07,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:28:07,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 18:28:07,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:08,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:28:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:08,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:08,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:08,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:28:08,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:08,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:08,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:08,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:08,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:08,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:08,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:08,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:08,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:28:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:08,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:08,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:08,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:08,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:08,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:08,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:08,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:08,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:08,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:08,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:08,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:08,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 18:28:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:08,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:08,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:08,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:08,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:08,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:08,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:08,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:08,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:08,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:08,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:08,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:08,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 18:28:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:08,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:08,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:08,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:08,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:08,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:08,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:08,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:08,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:08,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 18:28:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:08,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:08,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:08,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:08,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:08,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:08,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:08,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:08,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:08,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:08,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:08,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:08,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 18:28:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:08,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:08,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:08,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:08,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:08,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:08,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:08,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:08,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:08,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:08,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:08,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:08,173 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-10-14 18:28:08,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575731867] [2020-10-14 18:28:08,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:28:08,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 18:28:08,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678811546] [2020-10-14 18:28:08,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 18:28:08,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:28:08,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 18:28:08,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-14 18:28:08,185 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 15 states. [2020-10-14 18:28:08,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:28:08,980 INFO L93 Difference]: Finished difference Result 129 states and 149 transitions. [2020-10-14 18:28:08,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 18:28:08,981 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 76 [2020-10-14 18:28:08,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:28:08,984 INFO L225 Difference]: With dead ends: 129 [2020-10-14 18:28:08,984 INFO L226 Difference]: Without dead ends: 127 [2020-10-14 18:28:08,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=959, Unknown=0, NotChecked=0, Total=1122 [2020-10-14 18:28:08,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-14 18:28:09,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 113. [2020-10-14 18:28:09,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-14 18:28:09,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 128 transitions. [2020-10-14 18:28:09,007 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 128 transitions. Word has length 76 [2020-10-14 18:28:09,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:28:09,008 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 128 transitions. [2020-10-14 18:28:09,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 18:28:09,008 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 128 transitions. [2020-10-14 18:28:09,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 18:28:09,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:28:09,009 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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 18:28:09,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 18:28:09,009 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:28:09,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:28:09,010 INFO L82 PathProgramCache]: Analyzing trace with hash 2124440711, now seen corresponding path program 5 times [2020-10-14 18:28:09,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:28:09,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467663075] [2020-10-14 18:28:09,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:28:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:09,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:09,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:09,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:09,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:09,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:09,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:09,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:09,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:09,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:09,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:09,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:10,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:10,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:11,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:11,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:11,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:11,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:11,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:11,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:11,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:14,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:14,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 18:28:14,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-14 18:28:14,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 18:28:14,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:14,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:14,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 18:28:14,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:28:14,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 18:28:14,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:14,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:28:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:14,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:14,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:14,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:28:14,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:14,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:14,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:14,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:14,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:14,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:28:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:14,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:14,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:14,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:14,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:14,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 18:28:14,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:14,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:14,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:14,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:14,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:14,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:14,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 18:28:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:14,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:14,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:14,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:14,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:14,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:14,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:14,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:14,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:14,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:14,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:14,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:14,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 18:28:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:14,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:14,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:14,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:14,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:14,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:14,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:14,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:14,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:14,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 18:28:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:14,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:14,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:14,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:14,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:14,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:14,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:14,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:14,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:14,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:14,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:14,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:14,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 18:28:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:14,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:14,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:14,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:14,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:14,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:14,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:14,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:14,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:14,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:14,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:14,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:14,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:28:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:14,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:14,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:14,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:14,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:14,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:14,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:14,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:14,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:14,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 18:28:14,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:14,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:14,306 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 36 proven. 52 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-14 18:28:14,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467663075] [2020-10-14 18:28:14,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:28:14,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 18:28:14,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466024207] [2020-10-14 18:28:14,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 18:28:14,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:28:14,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 18:28:14,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-10-14 18:28:14,309 INFO L87 Difference]: Start difference. First operand 113 states and 128 transitions. Second operand 13 states. [2020-10-14 18:28:14,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:28:14,954 INFO L93 Difference]: Finished difference Result 142 states and 162 transitions. [2020-10-14 18:28:14,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 18:28:14,957 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-10-14 18:28:14,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:28:14,959 INFO L225 Difference]: With dead ends: 142 [2020-10-14 18:28:14,959 INFO L226 Difference]: Without dead ends: 126 [2020-10-14 18:28:14,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2020-10-14 18:28:14,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-14 18:28:14,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 113. [2020-10-14 18:28:14,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-14 18:28:14,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2020-10-14 18:28:14,977 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 85 [2020-10-14 18:28:14,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:28:14,977 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2020-10-14 18:28:14,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 18:28:14,978 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2020-10-14 18:28:14,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 18:28:14,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:28:14,979 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:28:14,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 18:28:14,979 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:28:14,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:28:14,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1113323461, now seen corresponding path program 6 times [2020-10-14 18:28:14,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:28:14,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556730268] [2020-10-14 18:28:14,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:28:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:15,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:15,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:15,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:15,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 18:28:15,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:28:15,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-14 18:28:15,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:15,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 18:28:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 18:28:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 18:28:15,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:15,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:28:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:15,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:15,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:15,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:28:15,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:15,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:15,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:15,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:15,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:15,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:28:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:15,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:15,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:15,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:15,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:15,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:28:15,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 18:28:15,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:15,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:15,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:15,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:15,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:15,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:15,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 18:28:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:15,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:15,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:15,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:15,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:15,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:15,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:15,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:15,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:15,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:15,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:15,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:15,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 18:28:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:15,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:15,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:15,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:15,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:15,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:15,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:15,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:15,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:15,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:15,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:15,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:15,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 18:28:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:15,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:15,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:15,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:15,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:15,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:15,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:15,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:15,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:15,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:15,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:15,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:15,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 18:28:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:15,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:15,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:15,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:15,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:15,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:15,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:15,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:15,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:15,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:28:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:15,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:15,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:15,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:15,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:15,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:15,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:15,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:15,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:15,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:15,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:15,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:15,830 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 75 proven. 1 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-14 18:28:15,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556730268] [2020-10-14 18:28:15,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:28:15,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 18:28:15,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247946906] [2020-10-14 18:28:15,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 18:28:15,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:28:15,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 18:28:15,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-14 18:28:15,833 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 13 states. [2020-10-14 18:28:16,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:28:16,534 INFO L93 Difference]: Finished difference Result 153 states and 169 transitions. [2020-10-14 18:28:16,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 18:28:16,535 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-10-14 18:28:16,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:28:16,537 INFO L225 Difference]: With dead ends: 153 [2020-10-14 18:28:16,537 INFO L226 Difference]: Without dead ends: 102 [2020-10-14 18:28:16,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2020-10-14 18:28:16,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-14 18:28:16,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 85. [2020-10-14 18:28:16,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-14 18:28:16,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-10-14 18:28:16,560 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 85 [2020-10-14 18:28:16,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:28:16,560 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-10-14 18:28:16,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 18:28:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-10-14 18:28:16,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 18:28:16,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:28:16,562 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 8, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:28:16,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 18:28:16,562 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:28:16,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:28:16,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1488178541, now seen corresponding path program 7 times [2020-10-14 18:28:16,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:28:16,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188382018] [2020-10-14 18:28:16,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:28:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:16,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:16,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:16,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:16,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:17,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:17,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:17,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:17,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:17,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:20,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:20,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:21,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:21,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:21,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:21,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:21,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 18:28:21,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 18:28:21,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 18:28:21,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:21,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:21,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 18:28:21,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 18:28:21,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 18:28:21,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:21,856 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2020-10-14 18:28:22,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:28:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:22,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:22,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:22,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:28:22,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:22,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:22,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:22,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:22,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:22,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:22,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:22,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:22,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:28:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:22,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:22,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:22,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:22,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:22,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:22,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:22,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:22,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:22,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 18:28:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:22,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:22,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:22,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:22,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:22,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:22,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:22,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:22,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:22,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:22,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:22,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:22,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 18:28:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:22,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:22,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:22,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:22,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:22,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:22,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:22,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:22,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:22,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:22,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:22,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:22,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:28:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:22,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:22,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:22,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:22,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:22,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:22,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:22,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:22,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:22,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:22,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:22,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:22,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:28:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:22,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:22,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:22,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:22,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:22,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:22,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:22,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:22,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:22,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:22,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:22,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:22,401 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 23 proven. 163 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-14 18:28:22,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188382018] [2020-10-14 18:28:22,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:28:22,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 18:28:22,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298674230] [2020-10-14 18:28:22,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 18:28:22,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:28:22,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 18:28:22,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2020-10-14 18:28:22,403 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 20 states. [2020-10-14 18:28:24,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:28:24,491 INFO L93 Difference]: Finished difference Result 113 states and 128 transitions. [2020-10-14 18:28:24,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-14 18:28:24,491 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 94 [2020-10-14 18:28:24,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:28:24,493 INFO L225 Difference]: With dead ends: 113 [2020-10-14 18:28:24,494 INFO L226 Difference]: Without dead ends: 111 [2020-10-14 18:28:24,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=368, Invalid=1794, Unknown=0, NotChecked=0, Total=2162 [2020-10-14 18:28:24,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-14 18:28:24,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 95. [2020-10-14 18:28:24,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-14 18:28:24,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 106 transitions. [2020-10-14 18:28:24,510 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 106 transitions. Word has length 94 [2020-10-14 18:28:24,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:28:24,511 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 106 transitions. [2020-10-14 18:28:24,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 18:28:24,511 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 106 transitions. [2020-10-14 18:28:24,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 18:28:24,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:28:24,512 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 8, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:28:24,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 18:28:24,512 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:28:24,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:28:24,513 INFO L82 PathProgramCache]: Analyzing trace with hash -342030864, now seen corresponding path program 8 times [2020-10-14 18:28:24,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:28:24,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206250673] [2020-10-14 18:28:24,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:28:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:24,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:24,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:24,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:24,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:24,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:24,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:24,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:25,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:25,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:25,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:25,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:26,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:26,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:26,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:27,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:27,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:27,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:27,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:27,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:27,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:27,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:27,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:29,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:29,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:29,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:29,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:29,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 18:28:29,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 25 [2020-10-14 18:28:29,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 18:28:29,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:29,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:29,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 18:28:29,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 18:28:29,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 18:28:29,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:30,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:28:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:30,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:30,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:30,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:28:30,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:30,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:30,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:30,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:30,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:30,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:30,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:30,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:30,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:28:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:30,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:30,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:30,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:30,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:30,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:30,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:30,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:30,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:30,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:30,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:30,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:30,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 18:28:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:30,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:30,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:30,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:30,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:30,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:30,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:30,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:30,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:30,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:30,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:30,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:30,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 18:28:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:30,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:30,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:30,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:30,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:30,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:30,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:30,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:30,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:30,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:30,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:30,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:30,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:28:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:30,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:30,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:30,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:30,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:30,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:30,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:30,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:30,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:30,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:30,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:30,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:30,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:28:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:30,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:30,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:30,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:30,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:30,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:28:30,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:30,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:30,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:30,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:28:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:30,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:30,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:30,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:30,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:30,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:30,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:30,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 18:28:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:30,380 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 57 proven. 153 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-14 18:28:30,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206250673] [2020-10-14 18:28:30,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:28:30,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 18:28:30,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134894380] [2020-10-14 18:28:30,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 18:28:30,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:28:30,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 18:28:30,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-10-14 18:28:30,385 INFO L87 Difference]: Start difference. First operand 95 states and 106 transitions. Second operand 18 states. [2020-10-14 18:28:32,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:28:32,179 INFO L93 Difference]: Finished difference Result 125 states and 140 transitions. [2020-10-14 18:28:32,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 18:28:32,180 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 103 [2020-10-14 18:28:32,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:28:32,181 INFO L225 Difference]: With dead ends: 125 [2020-10-14 18:28:32,181 INFO L226 Difference]: Without dead ends: 109 [2020-10-14 18:28:32,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=265, Invalid=1067, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 18:28:32,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-14 18:28:32,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 95. [2020-10-14 18:28:32,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-14 18:28:32,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2020-10-14 18:28:32,197 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 103 [2020-10-14 18:28:32,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:28:32,198 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2020-10-14 18:28:32,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 18:28:32,198 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2020-10-14 18:28:32,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 18:28:32,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:28:32,199 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 8, 6, 6, 6, 5, 5, 5, 5, 5, 4, 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 18:28:32,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 18:28:32,199 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:28:32,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:28:32,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1353148114, now seen corresponding path program 9 times [2020-10-14 18:28:32,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:28:32,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60537411] [2020-10-14 18:28:32,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:28:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:32,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:32,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:32,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:32,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:32,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:32,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:32,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:32,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:32,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:34,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:35,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:35,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:36,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:37,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:37,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 18:28:37,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 18:28:37,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 18:28:37,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:37,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:37,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 18:28:37,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 18:28:37,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 18:28:37,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:37,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:28:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:37,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:37,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:37,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:28:37,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:37,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:37,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:37,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:37,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:37,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:28:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:37,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:37,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:37,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:37,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:37,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:37,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:37,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:37,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:37,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:37,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:37,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:37,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 18:28:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:37,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:37,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:37,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:37,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:37,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:37,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:37,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:37,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:37,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:37,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:37,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:37,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 18:28:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:37,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:37,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:37,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:37,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:37,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:37,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:37,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:37,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:37,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:28:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:37,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:37,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:37,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:37,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:37,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:37,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:37,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:37,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:37,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:37,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:37,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:37,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:28:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:37,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:37,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:37,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:37,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:37,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:37,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:37,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:37,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:37,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:37,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:37,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:37,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:28:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:37,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:37,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:37,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:37,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:37,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:37,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:37,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:37,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:37,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:37,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:37,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:37,526 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 15 proven. 167 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-10-14 18:28:37,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60537411] [2020-10-14 18:28:37,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:28:37,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 18:28:37,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882664134] [2020-10-14 18:28:37,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 18:28:37,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:28:37,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 18:28:37,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-10-14 18:28:37,528 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand 15 states. [2020-10-14 18:28:38,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:28:38,453 INFO L93 Difference]: Finished difference Result 152 states and 169 transitions. [2020-10-14 18:28:38,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 18:28:38,453 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 103 [2020-10-14 18:28:38,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:28:38,455 INFO L225 Difference]: With dead ends: 152 [2020-10-14 18:28:38,455 INFO L226 Difference]: Without dead ends: 136 [2020-10-14 18:28:38,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=812, Unknown=0, NotChecked=0, Total=930 [2020-10-14 18:28:38,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-14 18:28:38,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 99. [2020-10-14 18:28:38,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-14 18:28:38,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 109 transitions. [2020-10-14 18:28:38,471 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 109 transitions. Word has length 103 [2020-10-14 18:28:38,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:28:38,472 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 109 transitions. [2020-10-14 18:28:38,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 18:28:38,472 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 109 transitions. [2020-10-14 18:28:38,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 18:28:38,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:28:38,473 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 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 18:28:38,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 18:28:38,474 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:28:38,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:28:38,474 INFO L82 PathProgramCache]: Analyzing trace with hash 898294607, now seen corresponding path program 10 times [2020-10-14 18:28:38,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:28:38,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397174134] [2020-10-14 18:28:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:28:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:38,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:38,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:38,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:38,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:38,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:38,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:38,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:38,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:39,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:39,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:39,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:39,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:39,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:39,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:39,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:40,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:40,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:41,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:43,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:43,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 18:28:43,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 18:28:43,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 18:28:43,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:43,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 18:28:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 18:28:43,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 18:28:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:43,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:28:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:43,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:43,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:43,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:28:43,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:43,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:43,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:43,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:43,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:43,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:43,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:43,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:43,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:28:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:43,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:43,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:43,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:43,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:43,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:43,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:43,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:43,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:43,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 18:28:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:43,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:43,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:43,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:43,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:43,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:43,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:43,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:43,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:43,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:43,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:43,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:43,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 18:28:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:43,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:43,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:43,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:43,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:43,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:43,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:43,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:43,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:43,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:43,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:43,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:43,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:28:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:43,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:43,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:43,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:43,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:43,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:43,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:43,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:43,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:43,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:43,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:43,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:43,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:28:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:43,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:43,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:43,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:43,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:43,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:43,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:43,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:43,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:43,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:43,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:28:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:43,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:43,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:43,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:43,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:43,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:43,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:43,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:43,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:43,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:28:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:43,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:43,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:43,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:43,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:43,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:43,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:43,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:43,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:43,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:43,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:43,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:43,835 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 18 proven. 203 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-14 18:28:43,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397174134] [2020-10-14 18:28:43,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:28:43,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 18:28:43,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823705155] [2020-10-14 18:28:43,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 18:28:43,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:28:43,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 18:28:43,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-10-14 18:28:43,837 INFO L87 Difference]: Start difference. First operand 99 states and 109 transitions. Second operand 17 states. [2020-10-14 18:28:45,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:28:45,075 INFO L93 Difference]: Finished difference Result 157 states and 175 transitions. [2020-10-14 18:28:45,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 18:28:45,076 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 112 [2020-10-14 18:28:45,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:28:45,078 INFO L225 Difference]: With dead ends: 157 [2020-10-14 18:28:45,078 INFO L226 Difference]: Without dead ends: 141 [2020-10-14 18:28:45,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 18:28:45,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-10-14 18:28:45,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 104. [2020-10-14 18:28:45,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-14 18:28:45,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 115 transitions. [2020-10-14 18:28:45,097 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 115 transitions. Word has length 112 [2020-10-14 18:28:45,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:28:45,098 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 115 transitions. [2020-10-14 18:28:45,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 18:28:45,098 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 115 transitions. [2020-10-14 18:28:45,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-14 18:28:45,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:28:45,100 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 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 18:28:45,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 18:28:45,100 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:28:45,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:28:45,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1069772366, now seen corresponding path program 11 times [2020-10-14 18:28:45,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:28:45,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808480281] [2020-10-14 18:28:45,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:28:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:45,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:45,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:45,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:45,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:45,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:45,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:45,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:45,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:45,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:45,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:46,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:46,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:46,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:47,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:47,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:47,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:47,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:47,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:47,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:47,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:48,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:48,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:48,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:48,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:49,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:49,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:49,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:50,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:50,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:50,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 18:28:50,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 28 [2020-10-14 18:28:50,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-14 18:28:50,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:50,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:50,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 18:28:50,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:28:50,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 18:28:50,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:50,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:28:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:50,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:50,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:50,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:28:50,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:50,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:50,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:50,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:50,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:50,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:28:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:50,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:50,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:50,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:50,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:50,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:50,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:50,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:50,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:50,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 18:28:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:50,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:50,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:50,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:50,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:50,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:50,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:50,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:50,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:50,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:50,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:50,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:50,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 18:28:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:50,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:50,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:50,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:50,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:50,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:50,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:50,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:50,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:50,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:50,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:50,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:50,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:28:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:50,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:50,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:50,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:50,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:50,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:50,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:50,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:50,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:50,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:50,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:50,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:50,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:28:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:50,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:50,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:50,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:50,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:50,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:50,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:50,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:50,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:50,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:50,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:50,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:50,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:28:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:50,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:50,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:50,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:50,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:50,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:50,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:50,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:50,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:50,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:50,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:28:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:50,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:50,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:50,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:50,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:50,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:50,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:28:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:50,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:50,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:50,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:50,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:50,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:50,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:50,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:50,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:50,691 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 23 proven. 235 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-14 18:28:50,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808480281] [2020-10-14 18:28:50,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:28:50,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 18:28:50,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850903572] [2020-10-14 18:28:50,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 18:28:50,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:28:50,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 18:28:50,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2020-10-14 18:28:50,693 INFO L87 Difference]: Start difference. First operand 104 states and 115 transitions. Second operand 20 states. [2020-10-14 18:28:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:28:53,387 INFO L93 Difference]: Finished difference Result 187 states and 211 transitions. [2020-10-14 18:28:53,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-14 18:28:53,388 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 121 [2020-10-14 18:28:53,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:28:53,390 INFO L225 Difference]: With dead ends: 187 [2020-10-14 18:28:53,390 INFO L226 Difference]: Without dead ends: 171 [2020-10-14 18:28:53,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=346, Invalid=2624, Unknown=0, NotChecked=0, Total=2970 [2020-10-14 18:28:53,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-14 18:28:53,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 109. [2020-10-14 18:28:53,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-14 18:28:53,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2020-10-14 18:28:53,413 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 121 [2020-10-14 18:28:53,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:28:53,414 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2020-10-14 18:28:53,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 18:28:53,414 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2020-10-14 18:28:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-14 18:28:53,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:28:53,416 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 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 18:28:53,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 18:28:53,416 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:28:53,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:28:53,417 INFO L82 PathProgramCache]: Analyzing trace with hash 548262447, now seen corresponding path program 12 times [2020-10-14 18:28:53,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:28:53,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281447939] [2020-10-14 18:28:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:28:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:53,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:53,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:53,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:53,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:53,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:53,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:54,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:54,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:54,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:54,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:55,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:55,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:55,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:55,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:56,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:57,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:57,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:57,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:57,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:58,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:58,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 18:28:58,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-14 18:28:58,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 18:28:58,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:58,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 18:28:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:28:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 18:28:58,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:58,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:28:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:58,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:58,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:58,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:28:58,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:58,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:58,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:58,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:58,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:28:58,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:58,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:28:58,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:58,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:28:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:58,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:58,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:58,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:58,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:58,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:58,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:58,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:58,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:58,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:58,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:58,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:58,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 18:28:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:58,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:58,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:58,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:58,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:58,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:58,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:58,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:58,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:58,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:58,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:58,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:58,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 18:28:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:58,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:58,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:58,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:58,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:58,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:28:58,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:58,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:58,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:58,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:58,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:58,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:58,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:28:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:58,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:58,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:58,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:58,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:58,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:58,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:58,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:58,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:58,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:28:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:58,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:58,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:58,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:58,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:58,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:58,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:58,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:58,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:58,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:28:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:58,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:58,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:58,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:58,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:58,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:58,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:58,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:58,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:58,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:58,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:58,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:58,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:28:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:58,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:58,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:58,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:58,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:58,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:58,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:58,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:58,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:58,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:28:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:58,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:58,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:58,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:58,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:58,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:58,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:58,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:58,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:28:58,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 18:28:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:28:58,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:28:58,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:28:58,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:28:58,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:28:58,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:28:58,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:28:58,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:28:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:28:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:28:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:28:58,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:28:58,890 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 24 proven. 266 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-10-14 18:28:58,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281447939] [2020-10-14 18:28:58,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:28:58,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 18:28:58,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124881363] [2020-10-14 18:28:58,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 18:28:58,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:28:58,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 18:28:58,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2020-10-14 18:28:58,892 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand 19 states. [2020-10-14 18:29:01,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:29:01,217 INFO L93 Difference]: Finished difference Result 208 states and 235 transitions. [2020-10-14 18:29:01,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 18:29:01,218 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 130 [2020-10-14 18:29:01,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:29:01,221 INFO L225 Difference]: With dead ends: 208 [2020-10-14 18:29:01,221 INFO L226 Difference]: Without dead ends: 192 [2020-10-14 18:29:01,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=269, Invalid=2083, Unknown=0, NotChecked=0, Total=2352 [2020-10-14 18:29:01,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-14 18:29:01,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 114. [2020-10-14 18:29:01,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-14 18:29:01,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 127 transitions. [2020-10-14 18:29:01,240 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 127 transitions. Word has length 130 [2020-10-14 18:29:01,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:29:01,241 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 127 transitions. [2020-10-14 18:29:01,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 18:29:01,241 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 127 transitions. [2020-10-14 18:29:01,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-14 18:29:01,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:29:01,242 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 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 18:29:01,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 18:29:01,243 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:29:01,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:29:01,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1034994834, now seen corresponding path program 13 times [2020-10-14 18:29:01,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:29:01,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639770062] [2020-10-14 18:29:01,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:29:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:01,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:01,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:01,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:01,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:01,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:01,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:02,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:02,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:02,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:02,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:03,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:03,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:04,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:04,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:05,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:05,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:06,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:06,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 18:29:06,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 18:29:06,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 18:29:06,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:06,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:06,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 18:29:06,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:29:06,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 18:29:06,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:06,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:29:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:06,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:06,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:06,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:29:06,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:06,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:06,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:06,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:06,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:06,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:06,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:06,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:06,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:29:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:06,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:06,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:06,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:06,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:06,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 18:29:06,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:06,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:06,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:06,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:06,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:06,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:06,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 18:29:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:06,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:06,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:06,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:06,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:06,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:06,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:06,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:06,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:06,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:06,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 18:29:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:06,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:06,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:06,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:06,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:06,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:06,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:06,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:06,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:06,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:29:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:06,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:06,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:06,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:06,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:06,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:06,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:06,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:06,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:06,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:06,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:29:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:06,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:06,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:06,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:06,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:06,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:06,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:06,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:06,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:06,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:06,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:06,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:06,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:29:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:06,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:06,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:06,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:06,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:06,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:06,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:06,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:06,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:06,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:06,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:06,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:06,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:29:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:06,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:06,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:06,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:06,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:06,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:06,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:06,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:06,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:06,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:06,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:06,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:06,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:29:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:06,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:06,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:06,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:06,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:06,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:06,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:06,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:06,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:06,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:06,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:06,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:06,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 18:29:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:06,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:06,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:06,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:06,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:06,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:06,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:06,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:06,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:06,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 18:29:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:06,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:06,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:06,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:06,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:06,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:06,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:06,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:06,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:06,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:06,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:06,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:06,869 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 18 proven. 310 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2020-10-14 18:29:06,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639770062] [2020-10-14 18:29:06,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:29:06,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 18:29:06,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788620437] [2020-10-14 18:29:06,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 18:29:06,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:29:06,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 18:29:06,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2020-10-14 18:29:06,874 INFO L87 Difference]: Start difference. First operand 114 states and 127 transitions. Second operand 21 states. [2020-10-14 18:29:08,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:29:08,607 INFO L93 Difference]: Finished difference Result 201 states and 232 transitions. [2020-10-14 18:29:08,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 18:29:08,608 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 139 [2020-10-14 18:29:08,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:29:08,610 INFO L225 Difference]: With dead ends: 201 [2020-10-14 18:29:08,610 INFO L226 Difference]: Without dead ends: 199 [2020-10-14 18:29:08,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=241, Invalid=2111, Unknown=0, NotChecked=0, Total=2352 [2020-10-14 18:29:08,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-10-14 18:29:08,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 185. [2020-10-14 18:29:08,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-14 18:29:08,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 211 transitions. [2020-10-14 18:29:08,647 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 211 transitions. Word has length 139 [2020-10-14 18:29:08,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:29:08,647 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 211 transitions. [2020-10-14 18:29:08,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 18:29:08,647 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 211 transitions. [2020-10-14 18:29:08,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-14 18:29:08,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:29:08,650 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 8, 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 18:29:08,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 18:29:08,650 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:29:08,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:29:08,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1555642097, now seen corresponding path program 14 times [2020-10-14 18:29:08,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:29:08,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071164202] [2020-10-14 18:29:08,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:29:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:08,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:08,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:09,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:09,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:09,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:09,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:09,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:09,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:09,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:10,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:10,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:11,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:11,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:13,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:13,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 18:29:13,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 18:29:13,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 18:29:13,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:13,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:13,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 18:29:13,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 18:29:13,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 18:29:13,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:14,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:29:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:14,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:14,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:29:14,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:14,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:14,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:14,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:14,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:14,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:14,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:14,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:14,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:29:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:14,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:14,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:14,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:29:14,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 18:29:14,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:14,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:14,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:14,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:14,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:14,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 18:29:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:14,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:14,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:14,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:14,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:14,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:14,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:14,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:14,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:14,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 18:29:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:14,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:14,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:14,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:14,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 18:29:14,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:14,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:14,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:14,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:14,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:14,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:29:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:14,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:14,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:14,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:14,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:14,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:14,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:14,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:14,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:14,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:14,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:14,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:29:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:14,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:14,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:14,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:14,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:29:14,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:14,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:14,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:14,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:14,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:14,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:14,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:29:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:14,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:14,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:14,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:14,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:14,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:14,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:14,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:14,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:14,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:14,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:14,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:29:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:14,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:14,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:14,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:14,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:14,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:14,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:14,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:14,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:14,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:14,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:14,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:29:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:14,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:14,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:14,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:14,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:14,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:14,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:14,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:14,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:14,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:14,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:14,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 18:29:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:14,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:14,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:14,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:14,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:14,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:14,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:14,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:14,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:14,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:14,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:14,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 18:29:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:14,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:14,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:14,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:14,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:14,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:14,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:14,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:14,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:14,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:14,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:14,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 18:29:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:14,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:14,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:14,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:14,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:14,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:14,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:14,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:14,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:14,225 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 275 proven. 90 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-14 18:29:14,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071164202] [2020-10-14 18:29:14,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:29:14,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 18:29:14,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659639566] [2020-10-14 18:29:14,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 18:29:14,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:29:14,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 18:29:14,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-14 18:29:14,227 INFO L87 Difference]: Start difference. First operand 185 states and 211 transitions. Second operand 19 states. [2020-10-14 18:29:15,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:29:15,340 INFO L93 Difference]: Finished difference Result 230 states and 258 transitions. [2020-10-14 18:29:15,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 18:29:15,342 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 148 [2020-10-14 18:29:15,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:29:15,344 INFO L225 Difference]: With dead ends: 230 [2020-10-14 18:29:15,344 INFO L226 Difference]: Without dead ends: 149 [2020-10-14 18:29:15,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=300, Invalid=1032, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 18:29:15,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-14 18:29:15,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 132. [2020-10-14 18:29:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-14 18:29:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 147 transitions. [2020-10-14 18:29:15,367 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 147 transitions. Word has length 148 [2020-10-14 18:29:15,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:29:15,368 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 147 transitions. [2020-10-14 18:29:15,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 18:29:15,368 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 147 transitions. [2020-10-14 18:29:15,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 18:29:15,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:29:15,370 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 10, 10, 10, 9, 9, 9, 9, 9, 8, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:29:15,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 18:29:15,370 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:29:15,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:29:15,371 INFO L82 PathProgramCache]: Analyzing trace with hash 394269719, now seen corresponding path program 15 times [2020-10-14 18:29:15,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:29:15,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5611635] [2020-10-14 18:29:15,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:29:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:15,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:15,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:15,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:15,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:15,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:15,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:16,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:16,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:16,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:16,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:17,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:20,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:20,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-14 18:29:20,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 18:29:20,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 18:29:20,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:20,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:20,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 18:29:20,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:29:20,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-14 18:29:20,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:21,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:29:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:21,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:21,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:21,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:29:21,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:21,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:21,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:21,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:21,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:21,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:21,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:21,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:21,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:29:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:21,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:21,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:21,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:21,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:21,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:21,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:21,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:21,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:29:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:21,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:21,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:21,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:21,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:21,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:21,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:21,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:21,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:21,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:21,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:21,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:21,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:29:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:21,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:21,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:21,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:21,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:21,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:21,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:21,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:21,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:21,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:29:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:21,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:21,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:21,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:21,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:21,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:21,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:21,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:21,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:21,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:21,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:21,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:21,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:29:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:21,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:21,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:21,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:21,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:21,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:21,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:21,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:21,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:21,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:29:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:21,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:21,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:21,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:21,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:21,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:21,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:21,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:21,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:21,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:21,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:21,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:21,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 18:29:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:21,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:21,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:21,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:21,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:21,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:21,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:21,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:21,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:21,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:21,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:21,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:21,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 18:29:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:21,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:21,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:21,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:21,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:21,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:21,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:21,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:21,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:21,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 18:29:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:21,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:21,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:21,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:21,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:21,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:21,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:21,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:21,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:21,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 18:29:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:21,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:21,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:21,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:21,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:21,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:21,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:21,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:21,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:21,546 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 20 proven. 520 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2020-10-14 18:29:21,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5611635] [2020-10-14 18:29:21,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:29:21,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 18:29:21,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691249520] [2020-10-14 18:29:21,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 18:29:21,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:29:21,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 18:29:21,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2020-10-14 18:29:21,549 INFO L87 Difference]: Start difference. First operand 132 states and 147 transitions. Second operand 29 states. [2020-10-14 18:29:26,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:29:26,441 INFO L93 Difference]: Finished difference Result 264 states and 306 transitions. [2020-10-14 18:29:26,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-10-14 18:29:26,442 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 157 [2020-10-14 18:29:26,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:29:26,445 INFO L225 Difference]: With dead ends: 264 [2020-10-14 18:29:26,445 INFO L226 Difference]: Without dead ends: 262 [2020-10-14 18:29:26,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1719 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=781, Invalid=6191, Unknown=0, NotChecked=0, Total=6972 [2020-10-14 18:29:26,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-14 18:29:26,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 208. [2020-10-14 18:29:26,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-14 18:29:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 239 transitions. [2020-10-14 18:29:26,527 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 239 transitions. Word has length 157 [2020-10-14 18:29:26,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:29:26,530 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 239 transitions. [2020-10-14 18:29:26,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 18:29:26,530 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 239 transitions. [2020-10-14 18:29:26,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-14 18:29:26,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:29:26,537 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 13, 10, 10, 10, 9, 9, 9, 9, 9, 8, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:29:26,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 18:29:26,537 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:29:26,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:29:26,538 INFO L82 PathProgramCache]: Analyzing trace with hash 640540449, now seen corresponding path program 16 times [2020-10-14 18:29:26,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:29:26,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427207203] [2020-10-14 18:29:26,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:29:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:26,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:26,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:26,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:26,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:26,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:26,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:28,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:28,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:29,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:29,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:29,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:29,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:31,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:31,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-14 18:29:31,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 18:29:31,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 18:29:31,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:31,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:31,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 18:29:31,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 18:29:31,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 18:29:31,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:32,889 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-10-14 18:29:33,205 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2020-10-14 18:29:33,376 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2020-10-14 18:29:33,586 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2020-10-14 18:29:34,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:29:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:34,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:34,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:34,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:29:34,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:34,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:34,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:34,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:34,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:34,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:29:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:34,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:34,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:34,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:34,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:34,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:34,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:34,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:34,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:34,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:34,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 18:29:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:34,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:34,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:34,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:34,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:34,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:34,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:34,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:34,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:34,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:34,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:34,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:34,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 18:29:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:34,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:34,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:34,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:34,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:34,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:34,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:34,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:34,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:34,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 18:29:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:34,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:34,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:34,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:34,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:34,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:34,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:34,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:34,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:34,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:34,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:34,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:34,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 18:29:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:34,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:34,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:34,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:34,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:34,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:34,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:34,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:34,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:34,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:34,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:34,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:34,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-14 18:29:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:34,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:34,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:34,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:34,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:34,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 18:29:34,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:34,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 18:29:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:34,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:34,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 18:29:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:34,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:34,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:34,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:34,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:34,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:34,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:34,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:34,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:34,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 18:29:34,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:34,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:34,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-14 18:29:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:34,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:34,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:34,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:34,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:34,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:34,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:34,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 18:29:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:34,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:34,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 18:29:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:34,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:34,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:34,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:34,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 18:29:34,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:34,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:34,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:34,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 18:29:34,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:34,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:34,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 18:29:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:34,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:34,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:34,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:34,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:34,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 18:29:34,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:34,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 18:29:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:34,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 133 proven. 424 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2020-10-14 18:29:34,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427207203] [2020-10-14 18:29:34,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:29:34,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-14 18:29:34,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743599910] [2020-10-14 18:29:34,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-14 18:29:34,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:29:34,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-14 18:29:34,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2020-10-14 18:29:34,313 INFO L87 Difference]: Start difference. First operand 208 states and 239 transitions. Second operand 28 states. [2020-10-14 18:29:35,453 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-14 18:29:35,872 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2020-10-14 18:29:36,257 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2020-10-14 18:29:36,425 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-14 18:29:36,709 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2020-10-14 18:29:36,875 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-10-14 18:29:37,182 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2020-10-14 18:29:38,134 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-10-14 18:29:38,749 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-14 18:29:39,153 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2020-10-14 18:29:39,569 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2020-10-14 18:29:39,765 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2020-10-14 18:29:40,059 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2020-10-14 18:29:40,413 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2020-10-14 18:29:41,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:29:41,852 INFO L93 Difference]: Finished difference Result 347 states and 404 transitions. [2020-10-14 18:29:41,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-14 18:29:41,853 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 160 [2020-10-14 18:29:41,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:29:41,855 INFO L225 Difference]: With dead ends: 347 [2020-10-14 18:29:41,856 INFO L226 Difference]: Without dead ends: 284 [2020-10-14 18:29:41,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1157 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=444, Invalid=4386, Unknown=0, NotChecked=0, Total=4830 [2020-10-14 18:29:41,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-14 18:29:41,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 221. [2020-10-14 18:29:41,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-14 18:29:41,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 256 transitions. [2020-10-14 18:29:41,908 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 256 transitions. Word has length 160 [2020-10-14 18:29:41,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:29:41,909 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 256 transitions. [2020-10-14 18:29:41,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-14 18:29:41,909 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 256 transitions. [2020-10-14 18:29:41,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-14 18:29:41,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:29:41,912 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 14, 10, 10, 10, 9, 9, 9, 9, 9, 8, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:29:41,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 18:29:41,912 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:29:41,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:29:41,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1487716311, now seen corresponding path program 17 times [2020-10-14 18:29:41,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:29:41,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619058039] [2020-10-14 18:29:41,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:29:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:41,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:42,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:42,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:42,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:42,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:42,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:42,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:45,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:45,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:45,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:46,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:46,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:46,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:46,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-14 18:29:46,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 18:29:46,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 18:29:46,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:46,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:46,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 18:29:46,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 18:29:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 18:29:46,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:48,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:29:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:48,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:48,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:48,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:29:48,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:48,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:48,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:48,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:48,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:48,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:48,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:48,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:48,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:29:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:48,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:48,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:48,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:48,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:48,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:48,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:48,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:48,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:48,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:48,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:48,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:48,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 18:29:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:48,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:48,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:48,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:48,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:48,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:29:48,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:48,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:48,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:48,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 18:29:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:48,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:48,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:48,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:48,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:48,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:48,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:48,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:48,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:48,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:48,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:48,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:48,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 18:29:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:48,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:48,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:48,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:48,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:48,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:48,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:48,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:48,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:48,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:48,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:48,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:48,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 18:29:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:48,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:48,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:48,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:48,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:48,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:48,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:48,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:48,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:48,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:48,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:48,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:48,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 18:29:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:48,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:48,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:48,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:48,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:48,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:48,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:48,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:48,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:48,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 18:29:48,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:48,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:48,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 18:29:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:48,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:48,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:48,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:48,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:48,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 18:29:48,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:48,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:48,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:48,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 18:29:48,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:48,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:48,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-14 18:29:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:48,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:48,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:48,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:48,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:48,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 18:29:48,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:48,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:48,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:48,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 18:29:48,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:48,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:48,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-14 18:29:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:48,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:48,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:48,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:48,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:48,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:48,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:48,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:48,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:48,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 18:29:48,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:48,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:48,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-14 18:29:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:48,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:48,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:48,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:48,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:48,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 18:29:48,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:48,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:48,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:48,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 18:29:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:48,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:48,587 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 159 proven. 441 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-10-14 18:29:48,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619058039] [2020-10-14 18:29:48,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:29:48,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 18:29:48,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404566043] [2020-10-14 18:29:48,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 18:29:48,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:29:48,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 18:29:48,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2020-10-14 18:29:48,589 INFO L87 Difference]: Start difference. First operand 221 states and 256 transitions. Second operand 24 states. [2020-10-14 18:29:49,426 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2020-10-14 18:29:49,623 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-10-14 18:29:49,796 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-10-14 18:29:49,970 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-14 18:29:50,126 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-10-14 18:29:50,301 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-14 18:29:50,467 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-10-14 18:29:50,650 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-10-14 18:29:50,838 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-10-14 18:29:51,033 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-10-14 18:29:51,203 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 35 [2020-10-14 18:29:51,441 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-10-14 18:29:51,720 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-10-14 18:29:52,055 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-10-14 18:29:52,356 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2020-10-14 18:29:53,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:29:53,558 INFO L93 Difference]: Finished difference Result 509 states and 598 transitions. [2020-10-14 18:29:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 18:29:53,558 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 163 [2020-10-14 18:29:53,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:29:53,560 INFO L225 Difference]: With dead ends: 509 [2020-10-14 18:29:53,560 INFO L226 Difference]: Without dead ends: 207 [2020-10-14 18:29:53,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 26 SyntacticMatches, 6 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=543, Invalid=2997, Unknown=0, NotChecked=0, Total=3540 [2020-10-14 18:29:53,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-10-14 18:29:53,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2020-10-14 18:29:53,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-14 18:29:53,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 229 transitions. [2020-10-14 18:29:53,604 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 229 transitions. Word has length 163 [2020-10-14 18:29:53,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:29:53,605 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 229 transitions. [2020-10-14 18:29:53,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 18:29:53,605 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 229 transitions. [2020-10-14 18:29:53,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-14 18:29:53,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:29:53,607 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 11, 11, 11, 10, 10, 10, 10, 10, 9, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:29:53,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 18:29:53,607 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:29:53,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:29:53,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1610915462, now seen corresponding path program 18 times [2020-10-14 18:29:53,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:29:53,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606648645] [2020-10-14 18:29:53,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:29:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:53,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:54,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:55,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:55,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:55,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:55,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:55,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:55,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:55,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:55,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:55,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:56,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:56,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:58,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:58,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 18:29:58,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 26 [2020-10-14 18:29:58,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 18:29:58,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:58,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 18:29:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 18:29:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-14 18:29:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:29:59,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:29:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:59,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:59,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:59,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:29:59,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:59,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 18:29:59,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:59,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:59,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:59,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:59,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:59,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:59,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:29:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:59,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:59,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:59,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:59,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:59,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:59,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:59,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:29:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:29:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:59,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:29:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:59,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:59,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:59,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:59,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:59,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:59,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:59,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:59,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:59,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:29:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:59,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:59,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:59,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:59,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:59,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:59,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:59,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:59,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:59,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:59,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:59,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:59,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:29:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:59,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:59,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:59,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:59,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:59,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:59,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:59,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:59,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:59,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:59,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:59,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:59,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:29:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:59,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:59,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:59,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:59,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:59,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:59,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:59,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:59,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:59,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:59,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:29:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:59,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:59,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:59,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:59,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:59,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:59,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:59,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:59,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:59,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:59,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:59,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:59,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 18:29:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:59,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:59,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:59,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:59,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:59,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:59,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:59,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:59,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:59,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 18:29:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:59,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:59,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:59,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:59,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:59,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:59,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:59,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:59,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:59,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 18:29:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:59,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:59,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:59,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:59,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:59,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:59,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:59,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:59,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:59,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:59,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:59,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:59,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 18:29:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:59,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:59,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:59,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:59,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:59,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:59,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:59,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:59,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 18:29:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:29:59,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:29:59,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:29:59,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:29:59,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:29:59,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:29:59,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:29:59,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:29:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:29:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:29:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:29:59,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:29:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 30 proven. 529 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-14 18:29:59,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606648645] [2020-10-14 18:29:59,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:29:59,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 18:29:59,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223339325] [2020-10-14 18:29:59,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 18:29:59,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:29:59,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 18:29:59,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=380, Unknown=0, NotChecked=0, Total=420 [2020-10-14 18:29:59,272 INFO L87 Difference]: Start difference. First operand 204 states and 229 transitions. Second operand 21 states. [2020-10-14 18:30:01,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:30:01,324 INFO L93 Difference]: Finished difference Result 250 states and 282 transitions. [2020-10-14 18:30:01,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 18:30:01,325 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 166 [2020-10-14 18:30:01,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:30:01,326 INFO L225 Difference]: With dead ends: 250 [2020-10-14 18:30:01,326 INFO L226 Difference]: Without dead ends: 234 [2020-10-14 18:30:01,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=185, Invalid=1977, Unknown=0, NotChecked=0, Total=2162 [2020-10-14 18:30:01,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-14 18:30:01,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 215. [2020-10-14 18:30:01,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-10-14 18:30:01,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 244 transitions. [2020-10-14 18:30:01,370 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 244 transitions. Word has length 166 [2020-10-14 18:30:01,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:30:01,371 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 244 transitions. [2020-10-14 18:30:01,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 18:30:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 244 transitions. [2020-10-14 18:30:01,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-14 18:30:01,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:30:01,373 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:30:01,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 18:30:01,373 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:30:01,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:30:01,374 INFO L82 PathProgramCache]: Analyzing trace with hash -288136969, now seen corresponding path program 19 times [2020-10-14 18:30:01,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:30:01,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163686159] [2020-10-14 18:30:01,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:30:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:01,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:01,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:01,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:01,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:01,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:02,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:02,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:02,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:02,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:02,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:02,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:02,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:02,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:02,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:03,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:03,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:06,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:06,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-14 18:30:06,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 18:30:06,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 18:30:06,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:06,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 18:30:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:30:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-14 18:30:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:30:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:30:07,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:07,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:30:07,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:30:07,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:30:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:07,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:30:07,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:07,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:07,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:30:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:07,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:07,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:07,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:07,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:30:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:07,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:07,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:07,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:07,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:30:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:07,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:07,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:07,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:07,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:30:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:07,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:07,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:07,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:07,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:30:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:07,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:07,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:07,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:07,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 18:30:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:07,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:07,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:07,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:07,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 18:30:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:07,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:07,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:07,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:07,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 18:30:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:07,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:07,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:07,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:07,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 18:30:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:07,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:07,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:07,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:07,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 18:30:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:07,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:07,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:07,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:07,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 18:30:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:07,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:07,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:07,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:07,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:07,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:07,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:07,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:07,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:07,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:07,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:07,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:07,347 INFO L134 CoverageAnalysis]: Checked inductivity of 922 backedges. 34 proven. 596 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2020-10-14 18:30:07,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163686159] [2020-10-14 18:30:07,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:30:07,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-14 18:30:07,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948147016] [2020-10-14 18:30:07,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-14 18:30:07,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:30:07,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-14 18:30:07,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=598, Unknown=0, NotChecked=0, Total=650 [2020-10-14 18:30:07,349 INFO L87 Difference]: Start difference. First operand 215 states and 244 transitions. Second operand 26 states. [2020-10-14 18:30:12,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:30:12,225 INFO L93 Difference]: Finished difference Result 263 states and 298 transitions. [2020-10-14 18:30:12,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-14 18:30:12,227 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 175 [2020-10-14 18:30:12,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:30:12,230 INFO L225 Difference]: With dead ends: 263 [2020-10-14 18:30:12,230 INFO L226 Difference]: Without dead ends: 247 [2020-10-14 18:30:12,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1165 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=447, Invalid=4955, Unknown=0, NotChecked=0, Total=5402 [2020-10-14 18:30:12,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-10-14 18:30:12,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 220. [2020-10-14 18:30:12,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-14 18:30:12,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 250 transitions. [2020-10-14 18:30:12,287 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 250 transitions. Word has length 175 [2020-10-14 18:30:12,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:30:12,288 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 250 transitions. [2020-10-14 18:30:12,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-14 18:30:12,288 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 250 transitions. [2020-10-14 18:30:12,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-14 18:30:12,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:30:12,290 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 16, 10, 10, 10, 9, 9, 9, 9, 9, 8, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:30:12,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 18:30:12,290 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:30:12,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:30:12,290 INFO L82 PathProgramCache]: Analyzing trace with hash 145060992, now seen corresponding path program 20 times [2020-10-14 18:30:12,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:30:12,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732351012] [2020-10-14 18:30:12,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:30:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:12,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:12,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:12,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:13,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:13,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:13,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:13,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:13,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:14,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:14,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:17,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:17,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-14 18:30:17,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 18:30:17,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 18:30:17,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:17,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:17,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 18:30:17,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 18:30:17,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 18:30:17,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:17,782 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 30 [2020-10-14 18:30:17,910 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2020-10-14 18:30:18,220 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2020-10-14 18:30:18,388 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 36 [2020-10-14 18:30:18,794 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2020-10-14 18:30:19,018 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 45 [2020-10-14 18:30:19,236 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 25 [2020-10-14 18:30:19,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:30:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:19,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:19,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:19,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:30:19,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:19,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:19,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:19,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:30:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:30:19,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:19,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:30:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:19,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:19,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:19,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:19,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:19,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:19,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:19,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:19,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:30:19,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:19,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:30:19,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:19,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:30:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:19,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:19,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:19,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:19,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:19,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:19,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:19,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:19,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:19,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:19,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:19,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:19,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:30:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:19,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:19,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:19,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:19,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:19,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:19,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:19,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:19,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:19,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:30:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:19,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:19,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:19,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:19,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:19,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:19,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:19,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:19,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:19,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 18:30:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:19,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:19,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:19,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:19,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:19,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:19,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:19,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:19,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:19,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:19,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:19,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:19,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 18:30:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:19,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:19,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:19,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:19,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:19,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:19,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:19,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:19,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:19,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:19,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:19,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:19,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 18:30:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:19,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:19,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:19,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:19,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:19,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:19,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:19,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:19,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:19,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 18:30:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:19,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:19,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:19,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:19,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:19,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:19,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:19,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:19,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:19,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:19,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:19,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:19,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 18:30:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:19,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:19,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:19,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:19,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:19,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:19,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:19,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:19,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:19,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:19,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:19,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:19,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 18:30:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:19,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:19,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:19,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:19,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:19,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:19,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:19,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:19,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:19,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:19,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:19,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:19,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 39 proven. 791 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2020-10-14 18:30:19,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732351012] [2020-10-14 18:30:19,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:30:19,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-14 18:30:19,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098327274] [2020-10-14 18:30:19,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-14 18:30:19,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:30:19,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-14 18:30:19,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=904, Unknown=0, NotChecked=0, Total=992 [2020-10-14 18:30:19,952 INFO L87 Difference]: Start difference. First operand 220 states and 250 transitions. Second operand 32 states. [2020-10-14 18:30:21,008 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2020-10-14 18:30:21,364 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2020-10-14 18:30:21,611 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2020-10-14 18:30:25,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:30:25,593 INFO L93 Difference]: Finished difference Result 228 states and 257 transitions. [2020-10-14 18:30:25,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-14 18:30:25,594 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 175 [2020-10-14 18:30:25,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:30:25,597 INFO L225 Difference]: With dead ends: 228 [2020-10-14 18:30:25,597 INFO L226 Difference]: Without dead ends: 226 [2020-10-14 18:30:25,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=491, Invalid=4479, Unknown=0, NotChecked=0, Total=4970 [2020-10-14 18:30:25,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-14 18:30:25,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 153. [2020-10-14 18:30:25,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-14 18:30:25,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 170 transitions. [2020-10-14 18:30:25,636 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 170 transitions. Word has length 175 [2020-10-14 18:30:25,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:30:25,637 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 170 transitions. [2020-10-14 18:30:25,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-14 18:30:25,637 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 170 transitions. [2020-10-14 18:30:25,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-14 18:30:25,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:30:25,638 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:30:25,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 18:30:25,639 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:30:25,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:30:25,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1544958554, now seen corresponding path program 21 times [2020-10-14 18:30:25,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:30:25,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34142473] [2020-10-14 18:30:25,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:30:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:25,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:25,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:25,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:26,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:26,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:26,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:26,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:26,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:26,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:26,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:26,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:27,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:29,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:29,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:30,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:30,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-14 18:30:30,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 18:30:30,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 18:30:30,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:30,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 18:30:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 18:30:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-14 18:30:30,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:30:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:30:31,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:31,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:30:31,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:30:31,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:30:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 18:30:31,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:30:31,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:30:31,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:30:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:31,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:31,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:31,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:30:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:31,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:31,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:30:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:31,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:31,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:31,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:30:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:31,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:31,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:31,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:30:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:31,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:31,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:31,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 18:30:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:31,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:31,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 18:30:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:31,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:31,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:31,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 18:30:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:31,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:31,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:31,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 18:30:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:31,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:31,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:31,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 18:30:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:31,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:31,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:31,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 18:30:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:31,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:31,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 18:30:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:31,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:31,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:31,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:31,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:31,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:31,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:31,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:31,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:31,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:31,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:31,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1026 backedges. 36 proven. 653 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2020-10-14 18:30:31,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34142473] [2020-10-14 18:30:31,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:30:31,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 18:30:31,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037442007] [2020-10-14 18:30:31,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 18:30:31,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:30:31,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 18:30:31,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=552, Unknown=0, NotChecked=0, Total=600 [2020-10-14 18:30:31,471 INFO L87 Difference]: Start difference. First operand 153 states and 170 transitions. Second operand 25 states. [2020-10-14 18:30:34,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:30:34,741 INFO L93 Difference]: Finished difference Result 212 states and 235 transitions. [2020-10-14 18:30:34,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-14 18:30:34,743 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 184 [2020-10-14 18:30:34,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:30:34,744 INFO L225 Difference]: With dead ends: 212 [2020-10-14 18:30:34,745 INFO L226 Difference]: Without dead ends: 196 [2020-10-14 18:30:34,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=251, Invalid=3171, Unknown=0, NotChecked=0, Total=3422 [2020-10-14 18:30:34,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-14 18:30:34,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 158. [2020-10-14 18:30:34,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-14 18:30:34,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 176 transitions. [2020-10-14 18:30:34,790 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 176 transitions. Word has length 184 [2020-10-14 18:30:34,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:30:34,791 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 176 transitions. [2020-10-14 18:30:34,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 18:30:34,791 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 176 transitions. [2020-10-14 18:30:34,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-14 18:30:34,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:30:34,793 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:30:34,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 18:30:34,794 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:30:34,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:30:34,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1098986967, now seen corresponding path program 22 times [2020-10-14 18:30:34,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:30:34,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [773565429] [2020-10-14 18:30:34,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:30:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:34,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:34,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:35,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:35,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:35,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:35,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:35,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:35,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:39,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:39,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-14 18:30:39,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 18:30:39,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-14 18:30:39,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:39,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:39,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 18:30:39,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:30:39,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 211 [2020-10-14 18:30:39,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:30:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:30:40,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:40,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:30:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:30:40,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:30:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:40,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:30:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:40,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:30:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:40,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:30:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:40,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:30:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:40,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:30:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:40,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 18:30:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:40,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 18:30:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:40,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 18:30:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:40,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 18:30:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:40,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 18:30:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:40,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 18:30:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:40,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:40,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 18:30:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:40,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:30:40,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-14 18:30:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:40,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:40,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:40,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:40,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:40,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:40,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:40,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:40,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:40,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:40,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:40,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:30:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 39 proven. 703 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2020-10-14 18:30:40,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [773565429] [2020-10-14 18:30:40,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:30:40,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 18:30:40,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109267065] [2020-10-14 18:30:40,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 18:30:40,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:30:40,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 18:30:40,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=552, Unknown=0, NotChecked=0, Total=600 [2020-10-14 18:30:40,700 INFO L87 Difference]: Start difference. First operand 158 states and 176 transitions. Second operand 25 states. [2020-10-14 18:30:45,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:30:45,104 INFO L93 Difference]: Finished difference Result 256 states and 284 transitions. [2020-10-14 18:30:45,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-14 18:30:45,105 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 193 [2020-10-14 18:30:45,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:30:45,107 INFO L225 Difference]: With dead ends: 256 [2020-10-14 18:30:45,107 INFO L226 Difference]: Without dead ends: 240 [2020-10-14 18:30:45,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=352, Invalid=4070, Unknown=0, NotChecked=0, Total=4422 [2020-10-14 18:30:45,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-14 18:30:45,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 163. [2020-10-14 18:30:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-14 18:30:45,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 182 transitions. [2020-10-14 18:30:45,145 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 182 transitions. Word has length 193 [2020-10-14 18:30:45,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:30:45,146 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 182 transitions. [2020-10-14 18:30:45,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 18:30:45,146 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 182 transitions. [2020-10-14 18:30:45,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-14 18:30:45,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:30:45,148 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 12, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:30:45,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 18:30:45,148 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:30:45,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:30:45,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1781697338, now seen corresponding path program 23 times [2020-10-14 18:30:45,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:30:45,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31826607] [2020-10-14 18:30:45,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:30:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:45,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:45,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:45,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:45,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:45,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:45,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:45,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:45,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:46,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:46,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:46,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:46,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:47,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:50,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:50,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 18:30:50,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 18:30:50,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 18:30:50,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:50,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:50,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 18:30:50,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 18:30:50,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 18:30:50,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:30:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:30:51,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:51,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:30:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:30:51,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:30:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 18:30:51,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:30:51,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:30:51,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:30:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:51,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:30:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:51,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:30:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:51,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:30:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:51,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:30:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:51,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 18:30:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:51,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 18:30:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:51,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 18:30:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:51,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 18:30:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:51,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 18:30:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:51,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 18:30:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:30:51,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 18:30:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:51,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-14 18:30:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:51,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-14 18:30:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:51,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:51,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:30:51,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:30:51,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:30:51,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:30:51,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:30:51,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:30:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:30:51,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:30:51,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:30:51,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:30:51,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 28 proven. 799 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2020-10-14 18:30:51,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31826607] [2020-10-14 18:30:51,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:30:51,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-14 18:30:51,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556562556] [2020-10-14 18:30:51,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-14 18:30:51,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:30:51,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-14 18:30:51,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2020-10-14 18:30:51,234 INFO L87 Difference]: Start difference. First operand 163 states and 182 transitions. Second operand 30 states. [2020-10-14 18:30:55,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:30:55,783 INFO L93 Difference]: Finished difference Result 279 states and 321 transitions. [2020-10-14 18:30:55,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-14 18:30:55,784 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 202 [2020-10-14 18:30:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:30:55,786 INFO L225 Difference]: With dead ends: 279 [2020-10-14 18:30:55,786 INFO L226 Difference]: Without dead ends: 277 [2020-10-14 18:30:55,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=269, Invalid=4561, Unknown=0, NotChecked=0, Total=4830 [2020-10-14 18:30:55,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-14 18:30:55,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 260. [2020-10-14 18:30:55,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-10-14 18:30:55,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 298 transitions. [2020-10-14 18:30:55,855 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 298 transitions. Word has length 202 [2020-10-14 18:30:55,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:30:55,856 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 298 transitions. [2020-10-14 18:30:55,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-14 18:30:55,856 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 298 transitions. [2020-10-14 18:30:55,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-14 18:30:55,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:30:55,858 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 12, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:30:55,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 18:30:55,859 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:30:55,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:30:55,859 INFO L82 PathProgramCache]: Analyzing trace with hash 821531319, now seen corresponding path program 24 times [2020-10-14 18:30:55,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:30:55,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658708834] [2020-10-14 18:30:55,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:30:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:30:55,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:56,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:56,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:56,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:56,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:56,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:56,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:56,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:56,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:56,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:57,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:30:58,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:00,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:00,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:00,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:00,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 18:31:00,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 18:31:00,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 18:31:00,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:00,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:00,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 18:31:00,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 18:31:00,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 231 [2020-10-14 18:31:00,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:31:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:31:01,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:31:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:31:01,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:31:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:31:01,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:31:01,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 18:31:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 18:31:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:31:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:31:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:31:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 18:31:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 18:31:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 18:31:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 18:31:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 18:31:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 18:31:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 18:31:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-14 18:31:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:31:01,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-14 18:31:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 18:31:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:01,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:01,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:01,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:01,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:01,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:01,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:01,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:01,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:01,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1392 backedges. 600 proven. 267 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2020-10-14 18:31:01,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658708834] [2020-10-14 18:31:01,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:31:01,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 18:31:01,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267113992] [2020-10-14 18:31:01,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 18:31:01,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:31:01,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 18:31:01,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2020-10-14 18:31:01,730 INFO L87 Difference]: Start difference. First operand 260 states and 298 transitions. Second operand 25 states. [2020-10-14 18:31:03,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:31:03,699 INFO L93 Difference]: Finished difference Result 309 states and 347 transitions. [2020-10-14 18:31:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-14 18:31:03,701 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 211 [2020-10-14 18:31:03,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:31:03,702 INFO L225 Difference]: With dead ends: 309 [2020-10-14 18:31:03,703 INFO L226 Difference]: Without dead ends: 198 [2020-10-14 18:31:03,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=532, Invalid=1820, Unknown=0, NotChecked=0, Total=2352 [2020-10-14 18:31:03,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-14 18:31:03,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 181. [2020-10-14 18:31:03,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-14 18:31:03,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 201 transitions. [2020-10-14 18:31:03,752 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 201 transitions. Word has length 211 [2020-10-14 18:31:03,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:31:03,753 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 201 transitions. [2020-10-14 18:31:03,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 18:31:03,753 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 201 transitions. [2020-10-14 18:31:03,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-14 18:31:03,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:31:03,755 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 16, 15, 15, 15, 14, 14, 14, 14, 14, 13, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:31:03,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 18:31:03,755 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:31:03,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:31:03,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1544738051, now seen corresponding path program 25 times [2020-10-14 18:31:03,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:31:03,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563532426] [2020-10-14 18:31:03,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:31:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:03,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:03,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:04,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:04,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:04,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:04,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:05,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:05,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:05,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:05,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:05,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:05,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:06,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:06,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:06,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:07,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:07,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:08,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:08,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:08,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:08,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-14 18:31:08,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-14 18:31:08,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 18:31:08,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:08,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-14 18:31:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 18:31:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 236 [2020-10-14 18:31:08,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:31:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:31:10,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:31:10,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:31:10,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 18:31:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:31:10,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:31:10,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 18:31:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 18:31:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 18:31:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 18:31:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 18:31:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 18:31:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 18:31:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 18:31:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 18:31:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 18:31:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-14 18:31:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-14 18:31:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 18:31:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-14 18:31:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:31:10,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:31:10,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:31:10,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:31:10,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:31:10,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:31:10,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:31:10,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:31:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:31:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:31:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:31:10,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 18:31:10,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 35 proven. 1084 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-14 18:31:10,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563532426] [2020-10-14 18:31:10,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:31:10,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-14 18:31:10,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124918750] [2020-10-14 18:31:10,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-14 18:31:10,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:31:10,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-14 18:31:10,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1113, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 18:31:10,420 INFO L87 Difference]: Start difference. First operand 181 states and 201 transitions. Second operand 35 states.